20852028280

素因数分解:

$2^3\times 5^1\times {\mathrm{521300707}}^1$

素因数の和:521300718

約数の個数: 16

約数和(自身を含む): 46917063720

約数和(自身を除く): 26065035440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521300707, 1042601414, 2085202828, 2606503535, 4170405656, 5213007070, 10426014140, 20852028280]

約数ペア:

[(1, 20852028280), (2, 10426014140), (4, 5213007070), (5, 4170405656), (8, 2606503535), (10, 2085202828), (20, 1042601414), (40, 521300707)]