159301990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2688

約数の個数: 32

約数和(自身を含む): 294166080

約数和(自身を除く): 134864090

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 2521, 5042, 6319, 12605, 12638, 25210, 31595, 63190, 178991, 224369, 357982, 448738, 894955, 1121845, 1789910, 2243690, 15930199, 31860398, 79650995, 159301990]

約数ペア:

[(1, 159301990), (2, 79650995), (5, 31860398), (10, 15930199), (71, 2243690), (89, 1789910), (142, 1121845), (178, 894955), (355, 448738), (445, 357982), (710, 224369), (890, 178991), (2521, 63190), (5042, 31595), (6319, 25210), (12605, 12638)]