20312520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 65664000

約数和(自身を除く): 45351480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 59, 60, 76, 95, 114, 118, 120, 151, 152, 177, 190, 228, 236, 285, 295, 302, 354, 380, 453, 456, 472, 570, 590, 604, 708, 755, 760, 885, 906, 1121, 1140, 1180, 1208, 1416, 1510, 1770, 1812, 2242, 2265, 2280, 2360, 2869, 3020, 3363, 3540, 3624, 4484, 4530, 5605, 5738, 6040, 6726, 7080, 8607, 8909, 8968, 9060, 11210, 11476, 13452, 14345, 16815, 17214, 17818, 18120, 22420, 22952, 26727, 26904, 28690, 33630, 34428, 35636, 43035, 44545, 44840, 53454, 57380, 67260, 68856, 71272, 86070, 89090, 106908, 114760, 133635, 134520, 169271, 172140, 178180, 213816, 267270, 338542, 344280, 356360, 507813, 534540, 677084, 846355, 1015626, 1069080, 1354168, 1692710, 2031252, 2539065, 3385420, 4062504, 5078130, 6770840, 10156260, 20312520]

約数ペア:

[(1, 20312520), (2, 10156260), (3, 6770840), (4, 5078130), (5, 4062504), (6, 3385420), (8, 2539065), (10, 2031252), (12, 1692710), (15, 1354168), (19, 1069080), (20, 1015626), (24, 846355), (30, 677084), (38, 534540), (40, 507813), (57, 356360), (59, 344280), (60, 338542), (76, 267270), (95, 213816), (114, 178180), (118, 172140), (120, 169271), (151, 134520), (152, 133635), (177, 114760), (190, 106908), (228, 89090), (236, 86070), (285, 71272), (295, 68856), (302, 67260), (354, 57380), (380, 53454), (453, 44840), (456, 44545), (472, 43035), (570, 35636), (590, 34428), (604, 33630), (708, 28690), (755, 26904), (760, 26727), (885, 22952), (906, 22420), (1121, 18120), (1140, 17818), (1180, 17214), (1208, 16815), (1416, 14345), (1510, 13452), (1770, 11476), (1812, 11210), (2242, 9060), (2265, 8968), (2280, 8909), (2360, 8607), (2869, 7080), (3020, 6726), (3363, 6040), (3540, 5738), (3624, 5605), (4484, 4530)]