78330040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27581}}^1$

素因数の和:27663

約数の個数: 32

約数和(自身を含む): 178731360

約数和(自身を除く): 100401320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 27581, 55162, 110324, 137905, 220648, 275810, 551620, 1103240, 1958251, 3916502, 7833004, 9791255, 15666008, 19582510, 39165020, 78330040]

約数ペア:

[(1, 78330040), (2, 39165020), (4, 19582510), (5, 15666008), (8, 9791255), (10, 7833004), (20, 3916502), (40, 1958251), (71, 1103240), (142, 551620), (284, 275810), (355, 220648), (568, 137905), (710, 110324), (1420, 55162), (2840, 27581)]