20010562

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 37997568

約数和(自身を除く): 17987006

約数列:

[1, 2, 11, 13, 22, 26, 31, 37, 61, 62, 74, 122, 143, 286, 341, 403, 407, 481, 671, 682, 793, 806, 814, 962, 1147, 1342, 1586, 1891, 2257, 2294, 3782, 4433, 4514, 5291, 8723, 8866, 10582, 12617, 14911, 17446, 20801, 24583, 24827, 25234, 29341, 29822, 41602, 49166, 49654, 58682, 69967, 139934, 164021, 270413, 322751, 328042, 540826, 645502, 769637, 909571, 1539274, 1819142, 10005281, 20010562]

約数ペア:

[(1, 20010562), (2, 10005281), (11, 1819142), (13, 1539274), (22, 909571), (26, 769637), (31, 645502), (37, 540826), (61, 328042), (62, 322751), (74, 270413), (122, 164021), (143, 139934), (286, 69967), (341, 58682), (403, 49654), (407, 49166), (481, 41602), (671, 29822), (682, 29341), (793, 25234), (806, 24827), (814, 24583), (962, 20801), (1147, 17446), (1342, 14911), (1586, 12617), (1891, 10582), (2257, 8866), (2294, 8723), (3782, 5291), (4433, 4514)]