1253780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 2963520

約数和(自身を除く): 1709740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 139, 164, 205, 220, 278, 410, 451, 556, 695, 820, 902, 1390, 1529, 1804, 2255, 2780, 3058, 4510, 5699, 6116, 7645, 9020, 11398, 15290, 22796, 28495, 30580, 56990, 62689, 113980, 125378, 250756, 313445, 626890, 1253780]

約数ペア:

[(1, 1253780), (2, 626890), (4, 313445), (5, 250756), (10, 125378), (11, 113980), (20, 62689), (22, 56990), (41, 30580), (44, 28495), (55, 22796), (82, 15290), (110, 11398), (139, 9020), (164, 7645), (205, 6116), (220, 5699), (278, 4510), (410, 3058), (451, 2780), (556, 2255), (695, 1804), (820, 1529), (902, 1390)]