100380520

素因数分解:

$2^3\times 5^1\times {\mathrm{2509513}}^1$

素因数の和:2509524

約数の個数: 16

約数和(自身を含む): 225856260

約数和(自身を除く): 125475740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2509513, 5019026, 10038052, 12547565, 20076104, 25095130, 50190260, 100380520]

約数ペア:

[(1, 100380520), (2, 50190260), (4, 25095130), (5, 20076104), (8, 12547565), (10, 10038052), (20, 5019026), (40, 2509513)]