20998150

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10243}}^1$

素因数の和:10296

約数の個数: 24

約数和(自身を含む): 40013064

約数和(自身を除く): 19014914

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10243, 20486, 51215, 102430, 256075, 419963, 512150, 839926, 2099815, 4199630, 10499075, 20998150]

約数ペア:

[(1, 20998150), (2, 10499075), (5, 4199630), (10, 2099815), (25, 839926), (41, 512150), (50, 419963), (82, 256075), (205, 102430), (410, 51215), (1025, 20486), (2050, 10243)]