20927890

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:594

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17952110

約数列:

[1, 2, 5, 10, 59, 79, 118, 158, 295, 395, 449, 590, 790, 898, 2245, 4490, 4661, 9322, 23305, 26491, 35471, 46610, 52982, 70942, 132455, 177355, 264910, 354710, 2092789, 4185578, 10463945, 20927890]

約数ペア:

[(1, 20927890), (2, 10463945), (5, 4185578), (10, 2092789), (59, 354710), (79, 264910), (118, 177355), (158, 132455), (295, 70942), (395, 52982), (449, 46610), (590, 35471), (790, 26491), (898, 23305), (2245, 9322), (4490, 4661)]