20879663608

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{656263}}^1$

素因数の和:656407

約数の個数: 32

約数和(自身を含む): 40517739360

約数和(自身を除く): 19638075752

約数列:

[1, 2, 4, 8, 41, 82, 97, 164, 194, 328, 388, 776, 3977, 7954, 15908, 31816, 656263, 1312526, 2625052, 5250104, 26906783, 53813566, 63657511, 107627132, 127315022, 215254264, 254630044, 509260088, 2609957951, 5219915902, 10439831804, 20879663608]

約数ペア:

[(1, 20879663608), (2, 10439831804), (4, 5219915902), (8, 2609957951), (41, 509260088), (82, 254630044), (97, 215254264), (164, 127315022), (194, 107627132), (328, 63657511), (388, 53813566), (776, 26906783), (3977, 5250104), (7954, 2625052), (15908, 1312526), (31816, 656263)]