20218836740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{534607}}^1$

素因数の和:534708

約数の個数: 48

約数和(自身を含む): 44547815424

約数和(自身を除く): 24328978684

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 7564, 9455, 18910, 37820, 534607, 1069214, 2138428, 2673035, 5346070, 10692140, 16572817, 32611027, 33145634, 65222054, 66291268, 82864085, 130444108, 163055135, 165728170, 326110270, 331456340, 652220540, 1010941837, 2021883674, 4043767348, 5054709185, 10109418370, 20218836740]

約数ペア:

[(1, 20218836740), (2, 10109418370), (4, 5054709185), (5, 4043767348), (10, 2021883674), (20, 1010941837), (31, 652220540), (61, 331456340), (62, 326110270), (122, 165728170), (124, 163055135), (155, 130444108), (244, 82864085), (305, 66291268), (310, 65222054), (610, 33145634), (620, 32611027), (1220, 16572817), (1891, 10692140), (3782, 5346070), (7564, 2673035), (9455, 2138428), (18910, 1069214), (37820, 534607)]