64623920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7411}}^1$

素因数の和:7533

約数の個数: 40

約数和(自身を含む): 151649520

約数和(自身を除く): 87025600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 7411, 8720, 14822, 29644, 37055, 59288, 74110, 118576, 148220, 296440, 592880, 807799, 1615598, 3231196, 4038995, 6462392, 8077990, 12924784, 16155980, 32311960, 64623920]

約数ペア:

[(1, 64623920), (2, 32311960), (4, 16155980), (5, 12924784), (8, 8077990), (10, 6462392), (16, 4038995), (20, 3231196), (40, 1615598), (80, 807799), (109, 592880), (218, 296440), (436, 148220), (545, 118576), (872, 74110), (1090, 59288), (1744, 37055), (2180, 29644), (4360, 14822), (7411, 8720)]