100403920

素因数分解:

$2^4\times 5^1\times {\mathrm{1255049}}^1$

素因数の和:1255062

約数の個数: 20

約数和(自身を含む): 233439300

約数和(自身を除く): 133035380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1255049, 2510098, 5020196, 6275245, 10040392, 12550490, 20080784, 25100980, 50201960, 100403920]

約数ペア:

[(1, 100403920), (2, 50201960), (4, 25100980), (5, 20080784), (8, 12550490), (10, 10040392), (16, 6275245), (20, 5020196), (40, 2510098), (80, 1255049)]