123789910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{2371}}^1$

素因数の和:2628

約数の個数: 32

約数和(自身を含む): 233632512

約数和(自身を除く): 109842602

約数列:

[1, 2, 5, 10, 23, 46, 115, 227, 230, 454, 1135, 2270, 2371, 4742, 5221, 10442, 11855, 23710, 26105, 52210, 54533, 109066, 272665, 538217, 545330, 1076434, 2691085, 5382170, 12378991, 24757982, 61894955, 123789910]

約数ペア:

[(1, 123789910), (2, 61894955), (5, 24757982), (10, 12378991), (23, 5382170), (46, 2691085), (115, 1076434), (227, 545330), (230, 538217), (454, 272665), (1135, 109066), (2270, 54533), (2371, 52210), (4742, 26105), (5221, 23710), (10442, 11855)]