31389410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2713}}^1$

素因数の和:2822

約数の個数: 32

約数和(自身を含む): 61553520

約数和(自身を除く): 30164110

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 2713, 5426, 5785, 11570, 13565, 27130, 35269, 70538, 176345, 241457, 352690, 482914, 1207285, 2414570, 3138941, 6277882, 15694705, 31389410]

約数ペア:

[(1, 31389410), (2, 15694705), (5, 6277882), (10, 3138941), (13, 2414570), (26, 1207285), (65, 482914), (89, 352690), (130, 241457), (178, 176345), (445, 70538), (890, 35269), (1157, 27130), (2314, 13565), (2713, 11570), (5426, 5785)]