664689745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 841881600

約数和(自身を除く): 177191855

約数列:

[1, 5, 41, 47, 149, 205, 235, 463, 745, 1927, 2315, 6109, 7003, 9635, 18983, 21761, 30545, 35015, 68987, 94915, 108805, 287123, 344935, 892201, 1435615, 2828467, 3242389, 4461005, 14142335, 16211945, 132937949, 664689745]

約数ペア:

[(1, 664689745), (5, 132937949), (41, 16211945), (47, 14142335), (149, 4461005), (205, 3242389), (235, 2828467), (463, 1435615), (745, 892201), (1927, 344935), (2315, 287123), (6109, 108805), (7003, 94915), (9635, 68987), (18983, 35015), (21761, 30545)]