1640786960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1206461}}^1$

素因数の和:1206491

約数の個数: 40

約数和(自身を含む): 4039234776

約数和(自身を除く): 2398447816

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1206461, 2412922, 4825844, 6032305, 9651688, 12064610, 19303376, 20509837, 24129220, 41019674, 48258440, 82039348, 96516880, 102549185, 164078696, 205098370, 328157392, 410196740, 820393480, 1640786960]

約数ペア:

[(1, 1640786960), (2, 820393480), (4, 410196740), (5, 328157392), (8, 205098370), (10, 164078696), (16, 102549185), (17, 96516880), (20, 82039348), (34, 48258440), (40, 41019674), (68, 24129220), (80, 20509837), (85, 19303376), (136, 12064610), (170, 9651688), (272, 6032305), (340, 4825844), (680, 2412922), (1360, 1206461)]