12889990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 24040800

約数和(自身を除く): 11150810

約数列:

[1, 2, 5, 10, 41, 82, 149, 205, 211, 298, 410, 422, 745, 1055, 1490, 2110, 6109, 8651, 12218, 17302, 30545, 31439, 43255, 61090, 62878, 86510, 157195, 314390, 1288999, 2577998, 6444995, 12889990]

約数ペア:

[(1, 12889990), (2, 6444995), (5, 2577998), (10, 1288999), (41, 314390), (82, 157195), (149, 86510), (205, 62878), (211, 61090), (298, 43255), (410, 31439), (422, 30545), (745, 17302), (1055, 12218), (1490, 8651), (2110, 6109)]