639363840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 288

約数和(自身を含む): 2175731712

約数和(自身を除く): 1536367872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 41, 48, 60, 62, 64, 80, 82, 93, 96, 120, 123, 124, 128, 131, 155, 160, 164, 186, 192, 205, 240, 246, 248, 256, 262, 310, 320, 328, 372, 384, 393, 410, 465, 480, 492, 496, 524, 615, 620, 640, 655, 656, 744, 768, 786, 820, 930, 960, 984, 992, 1048, 1230, 1240, 1271, 1280, 1310, 1312, 1488, 1572, 1640, 1860, 1920, 1965, 1968, 1984, 2096, 2460, 2480, 2542, 2620, 2624, 2976, 3144, 3280, 3720, 3813, 3840, 3930, 3936, 3968, 4061, 4192, 4920, 4960, 5084, 5240, 5248, 5371, 5952, 6288, 6355, 6560, 7440, 7626, 7860, 7872, 7936, 8122, 8384, 9840, 9920, 10168, 10480, 10496, 10742, 11904, 12183, 12576, 12710, 13120, 14880, 15252, 15720, 15744, 16113, 16244, 16768, 19065, 19680, 19840, 20305, 20336, 20960, 21484, 23808, 24366, 25152, 25420, 26240, 26855, 29760, 30504, 31440, 31488, 32226, 32488, 33536, 38130, 39360, 39680, 40610, 40672, 41920, 42968, 48732, 50304, 50840, 52480, 53710, 59520, 60915, 61008, 62880, 64452, 64976, 76260, 78720, 80565, 81220, 81344, 83840, 85936, 97464, 100608, 101680, 107420, 119040, 121830, 122016, 125760, 128904, 129952, 152520, 157440, 161130, 162440, 162688, 166501, 167680, 171872, 194928, 203360, 214840, 243660, 244032, 251520, 257808, 259904, 305040, 322260, 324880, 325376, 333002, 343744, 389856, 406720, 429680, 487320, 488064, 499503, 503040, 515616, 519808, 610080, 644520, 649760, 666004, 687488, 779712, 813440, 832505, 859360, 974640, 976128, 999006, 1031232, 1039616, 1220160, 1289040, 1299520, 1332008, 1374976, 1559424, 1626880, 1665010, 1718720, 1949280, 1998012, 2062464, 2440320, 2497515, 2578080, 2599040, 2664016, 3118848, 3330020, 3437440, 3898560, 3996024, 4124928, 4880640, 4995030, 5156160, 5198080, 5328032, 6660040, 6874880, 7797120, 7992048, 9990060, 10312320, 10656064, 13320080, 15594240, 15984096, 19980120, 20624640, 21312128, 26640160, 31968192, 39960240, 42624256, 53280320, 63936384, 79920480, 106560640, 127872768, 159840960, 213121280, 319681920, 639363840]

約数ペア:

[(1, 639363840), (2, 319681920), (3, 213121280), (4, 159840960), (5, 127872768), (6, 106560640), (8, 79920480), (10, 63936384), (12, 53280320), (15, 42624256), (16, 39960240), (20, 31968192), (24, 26640160), (30, 21312128), (31, 20624640), (32, 19980120), (40, 15984096), (41, 15594240), (48, 13320080), (60, 10656064), (62, 10312320), (64, 9990060), (80, 7992048), (82, 7797120), (93, 6874880), (96, 6660040), (120, 5328032), (123, 5198080), (124, 5156160), (128, 4995030), (131, 4880640), (155, 4124928), (160, 3996024), (164, 3898560), (186, 3437440), (192, 3330020), (205, 3118848), (240, 2664016), (246, 2599040), (248, 2578080), (256, 2497515), (262, 2440320), (310, 2062464), (320, 1998012), (328, 1949280), (372, 1718720), (384, 1665010), (393, 1626880), (410, 1559424), (465, 1374976), (480, 1332008), (492, 1299520), (496, 1289040), (524, 1220160), (615, 1039616), (620, 1031232), (640, 999006), (655, 976128), (656, 974640), (744, 859360), (768, 832505), (786, 813440), (820, 779712), (930, 687488), (960, 666004), (984, 649760), (992, 644520), (1048, 610080), (1230, 519808), (1240, 515616), (1271, 503040), (1280, 499503), (1310, 488064), (1312, 487320), (1488, 429680), (1572, 406720), (1640, 389856), (1860, 343744), (1920, 333002), (1965, 325376), (1968, 324880), (1984, 322260), (2096, 305040), (2460, 259904), (2480, 257808), (2542, 251520), (2620, 244032), (2624, 243660), (2976, 214840), (3144, 203360), (3280, 194928), (3720, 171872), (3813, 167680), (3840, 166501), (3930, 162688), (3936, 162440), (3968, 161130), (4061, 157440), (4192, 152520), (4920, 129952), (4960, 128904), (5084, 125760), (5240, 122016), (5248, 121830), (5371, 119040), (5952, 107420), (6288, 101680), (6355, 100608), (6560, 97464), (7440, 85936), (7626, 83840), (7860, 81344), (7872, 81220), (7936, 80565), (8122, 78720), (8384, 76260), (9840, 64976), (9920, 64452), (10168, 62880), (10480, 61008), (10496, 60915), (10742, 59520), (11904, 53710), (12183, 52480), (12576, 50840), (12710, 50304), (13120, 48732), (14880, 42968), (15252, 41920), (15720, 40672), (15744, 40610), (16113, 39680), (16244, 39360), (16768, 38130), (19065, 33536), (19680, 32488), (19840, 32226), (20305, 31488), (20336, 31440), (20960, 30504), (21484, 29760), (23808, 26855), (24366, 26240), (25152, 25420)]