40279960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20551}}^1$

素因数の和:20576

約数の個数: 48

約数和(自身を含む): 105431760

約数和(自身を除く): 65151800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20551, 41102, 82204, 102755, 143857, 164408, 205510, 287714, 411020, 575428, 719285, 822040, 1006999, 1150856, 1438570, 2013998, 2877140, 4027996, 5034995, 5754280, 8055992, 10069990, 20139980, 40279960]

約数ペア:

[(1, 40279960), (2, 20139980), (4, 10069990), (5, 8055992), (7, 5754280), (8, 5034995), (10, 4027996), (14, 2877140), (20, 2013998), (28, 1438570), (35, 1150856), (40, 1006999), (49, 822040), (56, 719285), (70, 575428), (98, 411020), (140, 287714), (196, 205510), (245, 164408), (280, 143857), (392, 102755), (490, 82204), (980, 41102), (1960, 20551)]