645720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{5381}}^1$

素因数の和:5395

約数の個数: 32

約数和(自身を含む): 1937520

約数和(自身を除く): 1291800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 5381, 10762, 16143, 21524, 26905, 32286, 43048, 53810, 64572, 80715, 107620, 129144, 161430, 215240, 322860, 645720]

約数ペア:

[(1, 645720), (2, 322860), (3, 215240), (4, 161430), (5, 129144), (6, 107620), (8, 80715), (10, 64572), (12, 53810), (15, 43048), (20, 32286), (24, 26905), (30, 21524), (40, 16143), (60, 10762), (120, 5381)]