81267720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{677231}}^1$

素因数の和:677245

約数の個数: 32

約数和(自身を含む): 243803520

約数和(自身を除く): 162535800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 677231, 1354462, 2031693, 2708924, 3386155, 4063386, 5417848, 6772310, 8126772, 10158465, 13544620, 16253544, 20316930, 27089240, 40633860, 81267720]

約数ペア:

[(1, 81267720), (2, 40633860), (3, 27089240), (4, 20316930), (5, 16253544), (6, 13544620), (8, 10158465), (10, 8126772), (12, 6772310), (15, 5417848), (20, 4063386), (24, 3386155), (30, 2708924), (40, 2031693), (60, 1354462), (120, 677231)]