168409880

素因数分解:

$2^3\times 5^1\times {\mathrm{4210247}}^1$

素因数の和:4210258

約数の個数: 16

約数和(自身を含む): 378922320

約数和(自身を除く): 210512440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4210247, 8420494, 16840988, 21051235, 33681976, 42102470, 84204940, 168409880]

約数ペア:

[(1, 168409880), (2, 84204940), (4, 42102470), (5, 33681976), (8, 21051235), (10, 16840988), (20, 8420494), (40, 4210247)]