646428

素因数分解:

$2^2\times 3^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 1525888

約数和(自身を除く): 879460

約数列:

[1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 523, 618, 1046, 1236, 1569, 2092, 3138, 6276, 53869, 107738, 161607, 215476, 323214, 646428]

約数ペア:

[(1, 646428), (2, 323214), (3, 215476), (4, 161607), (6, 107738), (12, 53869), (103, 6276), (206, 3138), (309, 2092), (412, 1569), (523, 1236), (618, 1046)]