31537090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{18661}}^1$

素因数の和:18694

約数の個数: 24

約数和(自身を含む): 61472628

約数和(自身を除く): 29935538

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 18661, 37322, 93305, 186610, 242593, 485186, 1212965, 2425930, 3153709, 6307418, 15768545, 31537090]

約数ペア:

[(1, 31537090), (2, 15768545), (5, 6307418), (10, 3153709), (13, 2425930), (26, 1212965), (65, 485186), (130, 242593), (169, 186610), (338, 93305), (845, 37322), (1690, 18661)]