20229640

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{967}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 45650880

約数和(自身を除く): 25421240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 967, 1046, 1934, 2092, 2615, 3868, 4184, 4835, 5230, 7736, 9670, 10460, 19340, 20920, 38680, 505741, 1011482, 2022964, 2528705, 4045928, 5057410, 10114820, 20229640]

約数ペア:

[(1, 20229640), (2, 10114820), (4, 5057410), (5, 4045928), (8, 2528705), (10, 2022964), (20, 1011482), (40, 505741), (523, 38680), (967, 20920), (1046, 19340), (1934, 10460), (2092, 9670), (2615, 7736), (3868, 5230), (4184, 4835)]