81237720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{676981}}^1$

素因数の和:676995

約数の個数: 32

約数和(自身を含む): 243713520

約数和(自身を除く): 162475800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 676981, 1353962, 2030943, 2707924, 3384905, 4061886, 5415848, 6769810, 8123772, 10154715, 13539620, 16247544, 20309430, 27079240, 40618860, 81237720]

約数ペア:

[(1, 81237720), (2, 40618860), (3, 27079240), (4, 20309430), (5, 16247544), (6, 13539620), (8, 10154715), (10, 8123772), (12, 6769810), (15, 5415848), (20, 4061886), (24, 3384905), (30, 2707924), (40, 2030943), (60, 1353962), (120, 676981)]