255420160

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 651071232

約数和(自身を除く): 395651072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 157, 160, 164, 205, 248, 256, 310, 314, 320, 328, 410, 496, 620, 628, 640, 656, 785, 820, 992, 1240, 1256, 1271, 1280, 1312, 1570, 1640, 1984, 2480, 2512, 2542, 2624, 3140, 3280, 3968, 4867, 4960, 5024, 5084, 5248, 6280, 6355, 6437, 6560, 7936, 9734, 9920, 10048, 10168, 10496, 12560, 12710, 12874, 13120, 19468, 19840, 20096, 20336, 24335, 25120, 25420, 25748, 26240, 32185, 38936, 39680, 40192, 40672, 48670, 50240, 50840, 51496, 52480, 64370, 77872, 81344, 97340, 100480, 101680, 102992, 128740, 155744, 162688, 194680, 199547, 200960, 203360, 205984, 257480, 311488, 325376, 389360, 399094, 406720, 411968, 514960, 622976, 778720, 798188, 813440, 823936, 997735, 1029920, 1245952, 1557440, 1596376, 1626880, 1647872, 1995470, 2059840, 3114880, 3192752, 3990940, 4119680, 6229760, 6385504, 7981880, 8239360, 12771008, 15963760, 25542016, 31927520, 51084032, 63855040, 127710080, 255420160]

約数ペア:

[(1, 255420160), (2, 127710080), (4, 63855040), (5, 51084032), (8, 31927520), (10, 25542016), (16, 15963760), (20, 12771008), (31, 8239360), (32, 7981880), (40, 6385504), (41, 6229760), (62, 4119680), (64, 3990940), (80, 3192752), (82, 3114880), (124, 2059840), (128, 1995470), (155, 1647872), (157, 1626880), (160, 1596376), (164, 1557440), (205, 1245952), (248, 1029920), (256, 997735), (310, 823936), (314, 813440), (320, 798188), (328, 778720), (410, 622976), (496, 514960), (620, 411968), (628, 406720), (640, 399094), (656, 389360), (785, 325376), (820, 311488), (992, 257480), (1240, 205984), (1256, 203360), (1271, 200960), (1280, 199547), (1312, 194680), (1570, 162688), (1640, 155744), (1984, 128740), (2480, 102992), (2512, 101680), (2542, 100480), (2624, 97340), (3140, 81344), (3280, 77872), (3968, 64370), (4867, 52480), (4960, 51496), (5024, 50840), (5084, 50240), (5248, 48670), (6280, 40672), (6355, 40192), (6437, 39680), (6560, 38936), (7936, 32185), (9734, 26240), (9920, 25748), (10048, 25420), (10168, 25120), (10496, 24335), (12560, 20336), (12710, 20096), (12874, 19840), (13120, 19468)]