20407080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{983}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 61637760

約数和(自身を除く): 41230680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 983, 1038, 1384, 1730, 1966, 2076, 2595, 2949, 3460, 3932, 4152, 4915, 5190, 5898, 6920, 7864, 9830, 10380, 11796, 14745, 19660, 20760, 23592, 29490, 39320, 58980, 117960, 170059, 340118, 510177, 680236, 850295, 1020354, 1360472, 1700590, 2040708, 2550885, 3401180, 4081416, 5101770, 6802360, 10203540, 20407080]

約数ペア:

[(1, 20407080), (2, 10203540), (3, 6802360), (4, 5101770), (5, 4081416), (6, 3401180), (8, 2550885), (10, 2040708), (12, 1700590), (15, 1360472), (20, 1020354), (24, 850295), (30, 680236), (40, 510177), (60, 340118), (120, 170059), (173, 117960), (346, 58980), (519, 39320), (692, 29490), (865, 23592), (983, 20760), (1038, 19660), (1384, 14745), (1730, 11796), (1966, 10380), (2076, 9830), (2595, 7864), (2949, 6920), (3460, 5898), (3932, 5190), (4152, 4915)]