64491320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84857}}^1$

素因数の和:84887

約数の個数: 32

約数和(自身を含む): 152744400

約数和(自身を除く): 88253080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 84857, 169714, 339428, 424285, 678856, 848570, 1612283, 1697140, 3224566, 3394280, 6449132, 8061415, 12898264, 16122830, 32245660, 64491320]

約数ペア:

[(1, 64491320), (2, 32245660), (4, 16122830), (5, 12898264), (8, 8061415), (10, 6449132), (19, 3394280), (20, 3224566), (38, 1697140), (40, 1612283), (76, 848570), (95, 678856), (152, 424285), (190, 339428), (380, 169714), (760, 84857)]