100905040

素因数分解:

$2^4\times 5^1\times {\mathrm{1261313}}^1$

素因数の和:1261326

約数の個数: 20

約数和(自身を含む): 234604404

約数和(自身を除く): 133699364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1261313, 2522626, 5045252, 6306565, 10090504, 12613130, 20181008, 25226260, 50452520, 100905040]

約数ペア:

[(1, 100905040), (2, 50452520), (4, 25226260), (5, 20181008), (8, 12613130), (10, 10090504), (16, 6306565), (20, 5045252), (40, 2522626), (80, 1261313)]