31375760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30169}}^1$

素因数の和:30195

約数の個数: 40

約数和(自身を含む): 78562680

約数和(自身を除く): 47186920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30169, 60338, 120676, 150845, 241352, 301690, 392197, 482704, 603380, 784394, 1206760, 1568788, 1960985, 2413520, 3137576, 3921970, 6275152, 7843940, 15687880, 31375760]

約数ペア:

[(1, 31375760), (2, 15687880), (4, 7843940), (5, 6275152), (8, 3921970), (10, 3137576), (13, 2413520), (16, 1960985), (20, 1568788), (26, 1206760), (40, 784394), (52, 603380), (65, 482704), (80, 392197), (104, 301690), (130, 241352), (208, 150845), (260, 120676), (520, 60338), (1040, 30169)]