100505420

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{20021}}^1$

素因数の和:20281

約数の個数: 24

約数和(自身を含む): 211912848

約数和(自身を除く): 111407428

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 20021, 40042, 80084, 100105, 200210, 400420, 5025271, 10050542, 20101084, 25126355, 50252710, 100505420]

約数ペア:

[(1, 100505420), (2, 50252710), (4, 25126355), (5, 20101084), (10, 10050542), (20, 5025271), (251, 400420), (502, 200210), (1004, 100105), (1255, 80084), (2510, 40042), (5020, 20021)]