219872008

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{308809}}^1$

素因数の和:308904

約数の個数: 16

約数和(自身を含む): 416893500

約数和(自身を除く): 197021492

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 308809, 617618, 1235236, 2470472, 27484001, 54968002, 109936004, 219872008]

約数ペア:

[(1, 219872008), (2, 109936004), (4, 54968002), (8, 27484001), (89, 2470472), (178, 1235236), (356, 617618), (712, 308809)]