663410270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{8537}}^1$

素因数の和:8972

約数の個数: 32

約数和(自身を含む): 1260208800

約数和(自身を除く): 596798530

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 409, 818, 2045, 4090, 7771, 8537, 15542, 17074, 38855, 42685, 77710, 85370, 162203, 324406, 811015, 1622030, 3491633, 6983266, 17458165, 34916330, 66341027, 132682054, 331705135, 663410270]

約数ペア:

[(1, 663410270), (2, 331705135), (5, 132682054), (10, 66341027), (19, 34916330), (38, 17458165), (95, 6983266), (190, 3491633), (409, 1622030), (818, 811015), (2045, 324406), (4090, 162203), (7771, 85370), (8537, 77710), (15542, 42685), (17074, 38855)]