64832840

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{5113}}^1$

素因数の和:5441

約数の個数: 32

約数和(自身を含む): 146362680

約数和(自身を除く): 81529840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 5113, 6340, 10226, 12680, 20452, 25565, 40904, 51130, 102260, 204520, 1620821, 3241642, 6483284, 8104105, 12966568, 16208210, 32416420, 64832840]

約数ペア:

[(1, 64832840), (2, 32416420), (4, 16208210), (5, 12966568), (8, 8104105), (10, 6483284), (20, 3241642), (40, 1620821), (317, 204520), (634, 102260), (1268, 51130), (1585, 40904), (2536, 25565), (3170, 20452), (5113, 12680), (6340, 10226)]