31399840

素因数分解:

$2^5\times 5^1\times {\mathrm{443}}^2$

素因数の和:901

約数の個数: 36

約数和(自身を含む): 74349954

約数和(自身を除く): 42950114

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 443, 886, 1772, 2215, 3544, 4430, 7088, 8860, 14176, 17720, 35440, 70880, 196249, 392498, 784996, 981245, 1569992, 1962490, 3139984, 3924980, 6279968, 7849960, 15699920, 31399840]

約数ペア:

[(1, 31399840), (2, 15699920), (4, 7849960), (5, 6279968), (8, 3924980), (10, 3139984), (16, 1962490), (20, 1569992), (32, 981245), (40, 784996), (80, 392498), (160, 196249), (443, 70880), (886, 35440), (1772, 17720), (2215, 14176), (3544, 8860), (4430, 7088)]