81417720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678481}}^1$

素因数の和:678495

約数の個数: 32

約数和(自身を含む): 244253520

約数和(自身を除く): 162835800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678481, 1356962, 2035443, 2713924, 3392405, 4070886, 5427848, 6784810, 8141772, 10177215, 13569620, 16283544, 20354430, 27139240, 40708860, 81417720]

約数ペア:

[(1, 81417720), (2, 40708860), (3, 27139240), (4, 20354430), (5, 16283544), (6, 13569620), (8, 10177215), (10, 8141772), (12, 6784810), (15, 5427848), (20, 4070886), (24, 3392405), (30, 2713924), (40, 2035443), (60, 1356962), (120, 678481)]