31380920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{13297}}^1$

素因数の和:13367

約数の個数: 32

約数和(自身を含む): 71809200

約数和(自身を除く): 40428280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 13297, 26594, 53188, 66485, 106376, 132970, 265940, 531880, 784523, 1569046, 3138092, 3922615, 6276184, 7845230, 15690460, 31380920]

約数ペア:

[(1, 31380920), (2, 15690460), (4, 7845230), (5, 6276184), (8, 3922615), (10, 3138092), (20, 1569046), (40, 784523), (59, 531880), (118, 265940), (236, 132970), (295, 106376), (472, 66485), (590, 53188), (1180, 26594), (2360, 13297)]