278380390

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{381343}}^1$

素因数の和:381423

約数の個数: 16

約数和(自身を含む): 507950208

約数和(自身を除く): 229569818

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 381343, 762686, 1906715, 3813430, 27838039, 55676078, 139190195, 278380390]

約数ペア:

[(1, 278380390), (2, 139190195), (5, 55676078), (10, 27838039), (73, 3813430), (146, 1906715), (365, 762686), (730, 381343)]