31394870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 64120896

約数和(自身を除く): 32726026

約数列:

[1, 2, 5, 10, 13, 26, 37, 61, 65, 74, 107, 122, 130, 185, 214, 305, 370, 481, 535, 610, 793, 962, 1070, 1391, 1586, 2257, 2405, 2782, 3959, 3965, 4514, 4810, 6527, 6955, 7918, 7930, 11285, 13054, 13910, 19795, 22570, 29341, 32635, 39590, 51467, 58682, 65270, 84851, 102934, 146705, 169702, 241499, 257335, 293410, 424255, 482998, 514670, 848510, 1207495, 2414990, 3139487, 6278974, 15697435, 31394870]

約数ペア:

[(1, 31394870), (2, 15697435), (5, 6278974), (10, 3139487), (13, 2414990), (26, 1207495), (37, 848510), (61, 514670), (65, 482998), (74, 424255), (107, 293410), (122, 257335), (130, 241499), (185, 169702), (214, 146705), (305, 102934), (370, 84851), (481, 65270), (535, 58682), (610, 51467), (793, 39590), (962, 32635), (1070, 29341), (1391, 22570), (1586, 19795), (2257, 13910), (2405, 13054), (2782, 11285), (3959, 7930), (3965, 7918), (4514, 6955), (4810, 6527)]