81155920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34981}}^1$

素因数の和:35023

約数の個数: 40

約数和(自身を含む): 195199560

約数和(自身を除く): 114043640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 34981, 69962, 139924, 174905, 279848, 349810, 559696, 699620, 1014449, 1399240, 2028898, 2798480, 4057796, 5072245, 8115592, 10144490, 16231184, 20288980, 40577960, 81155920]

約数ペア:

[(1, 81155920), (2, 40577960), (4, 20288980), (5, 16231184), (8, 10144490), (10, 8115592), (16, 5072245), (20, 4057796), (29, 2798480), (40, 2028898), (58, 1399240), (80, 1014449), (116, 699620), (145, 559696), (232, 349810), (290, 279848), (464, 174905), (580, 139924), (1160, 69962), (2320, 34981)]