80510885

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 127948800

約数和(自身を除く): 47437915

約数列:

[1, 5, 7, 13, 19, 35, 65, 67, 91, 95, 133, 139, 247, 335, 455, 469, 665, 695, 871, 973, 1235, 1273, 1729, 1807, 2345, 2641, 4355, 4865, 6097, 6365, 8645, 8911, 9035, 9313, 12649, 13205, 16549, 18487, 30485, 34333, 44555, 46565, 63245, 65191, 82745, 92435, 115843, 121069, 171665, 176947, 240331, 325955, 579215, 605345, 847483, 884735, 1201655, 1238629, 2300311, 4237415, 6193145, 11501555, 16102177, 80510885]

約数ペア:

[(1, 80510885), (5, 16102177), (7, 11501555), (13, 6193145), (19, 4237415), (35, 2300311), (65, 1238629), (67, 1201655), (91, 884735), (95, 847483), (133, 605345), (139, 579215), (247, 325955), (335, 240331), (455, 176947), (469, 171665), (665, 121069), (695, 115843), (871, 92435), (973, 82745), (1235, 65191), (1273, 63245), (1729, 46565), (1807, 44555), (2345, 34333), (2641, 30485), (4355, 18487), (4865, 16549), (6097, 13205), (6365, 12649), (8645, 9313), (8911, 9035)]