128270320

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{3571}}^1$

素因数の和:4033

約数の個数: 40

約数和(自身を含む): 298976400

約数和(自身を除く): 170706080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1796, 2245, 3571, 3592, 4490, 7142, 7184, 8980, 14284, 17855, 17960, 28568, 35710, 35920, 57136, 71420, 142840, 285680, 1603379, 3206758, 6413516, 8016895, 12827032, 16033790, 25654064, 32067580, 64135160, 128270320]

約数ペア:

[(1, 128270320), (2, 64135160), (4, 32067580), (5, 25654064), (8, 16033790), (10, 12827032), (16, 8016895), (20, 6413516), (40, 3206758), (80, 1603379), (449, 285680), (898, 142840), (1796, 71420), (2245, 57136), (3571, 35920), (3592, 35710), (4490, 28568), (7142, 17960), (7184, 17855), (8980, 14284)]