19954080

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:204

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52621920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 96, 108, 120, 124, 135, 144, 149, 155, 160, 180, 186, 216, 240, 248, 270, 279, 288, 298, 310, 360, 372, 432, 447, 465, 480, 496, 540, 558, 596, 620, 720, 744, 745, 837, 864, 894, 930, 992, 1080, 1116, 1192, 1240, 1341, 1395, 1440, 1488, 1490, 1674, 1788, 1860, 2160, 2232, 2235, 2384, 2480, 2682, 2790, 2976, 2980, 3348, 3576, 3720, 4023, 4185, 4320, 4464, 4470, 4619, 4768, 4960, 5364, 5580, 5960, 6696, 6705, 7152, 7440, 8046, 8370, 8928, 8940, 9238, 10728, 11160, 11920, 13392, 13410, 13857, 14304, 14880, 16092, 16740, 17880, 18476, 20115, 21456, 22320, 23095, 23840, 26784, 26820, 27714, 32184, 33480, 35760, 36952, 40230, 41571, 42912, 44640, 46190, 53640, 55428, 64368, 66960, 69285, 71520, 73904, 80460, 83142, 92380, 107280, 110856, 124713, 128736, 133920, 138570, 147808, 160920, 166284, 184760, 207855, 214560, 221712, 249426, 277140, 321840, 332568, 369520, 415710, 443424, 498852, 554280, 623565, 643680, 665136, 739040, 831420, 997704, 1108560, 1247130, 1330272, 1662840, 1995408, 2217120, 2494260, 3325680, 3990816, 4988520, 6651360, 9977040, 19954080]

約数ペア:

[(1, 19954080), (2, 9977040), (3, 6651360), (4, 4988520), (5, 3990816), (6, 3325680), (8, 2494260), (9, 2217120), (10, 1995408), (12, 1662840), (15, 1330272), (16, 1247130), (18, 1108560), (20, 997704), (24, 831420), (27, 739040), (30, 665136), (31, 643680), (32, 623565), (36, 554280), (40, 498852), (45, 443424), (48, 415710), (54, 369520), (60, 332568), (62, 321840), (72, 277140), (80, 249426), (90, 221712), (93, 214560), (96, 207855), (108, 184760), (120, 166284), (124, 160920), (135, 147808), (144, 138570), (149, 133920), (155, 128736), (160, 124713), (180, 110856), (186, 107280), (216, 92380), (240, 83142), (248, 80460), (270, 73904), (279, 71520), (288, 69285), (298, 66960), (310, 64368), (360, 55428), (372, 53640), (432, 46190), (447, 44640), (465, 42912), (480, 41571), (496, 40230), (540, 36952), (558, 35760), (596, 33480), (620, 32184), (720, 27714), (744, 26820), (745, 26784), (837, 23840), (864, 23095), (894, 22320), (930, 21456), (992, 20115), (1080, 18476), (1116, 17880), (1192, 16740), (1240, 16092), (1341, 14880), (1395, 14304), (1440, 13857), (1488, 13410), (1490, 13392), (1674, 11920), (1788, 11160), (1860, 10728), (2160, 9238), (2232, 8940), (2235, 8928), (2384, 8370), (2480, 8046), (2682, 7440), (2790, 7152), (2976, 6705), (2980, 6696), (3348, 5960), (3576, 5580), (3720, 5364), (4023, 4960), (4185, 4768), (4320, 4619), (4464, 4470)]