30405720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{253381}}^1$

素因数の和:253395

約数の個数: 32

約数和(自身を含む): 91217520

約数和(自身を除く): 60811800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 253381, 506762, 760143, 1013524, 1266905, 1520286, 2027048, 2533810, 3040572, 3800715, 5067620, 6081144, 7601430, 10135240, 15202860, 30405720]

約数ペア:

[(1, 30405720), (2, 15202860), (3, 10135240), (4, 7601430), (5, 6081144), (6, 5067620), (8, 3800715), (10, 3040572), (12, 2533810), (15, 2027048), (20, 1520286), (24, 1266905), (30, 1013524), (40, 760143), (60, 506762), (120, 253381)]