407620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 869400

約数和(自身を除く): 461780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 229, 356, 445, 458, 890, 916, 1145, 1780, 2290, 4580, 20381, 40762, 81524, 101905, 203810, 407620]

約数ペア:

[(1, 407620), (2, 203810), (4, 101905), (5, 81524), (10, 40762), (20, 20381), (89, 4580), (178, 2290), (229, 1780), (356, 1145), (445, 916), (458, 890)]