1681128020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{53437}}^1$

素因数の和:53481

約数の個数: 72

約数和(自身を含む): 4179065352

約数和(自身を除く): 2497937332

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2860, 3146, 6292, 7865, 15730, 31460, 53437, 106874, 213748, 267185, 534370, 587807, 694681, 1068740, 1175614, 1389362, 2351228, 2778724, 2939035, 3473405, 5878070, 6465877, 6946810, 7641491, 11756140, 12931754, 13893620, 15282982, 25863508, 30565964, 32329385, 38207455, 64658770, 76414910, 84056401, 129317540, 152829820, 168112802, 336225604, 420282005, 840564010, 1681128020]

約数ペア:

[(1, 1681128020), (2, 840564010), (4, 420282005), (5, 336225604), (10, 168112802), (11, 152829820), (13, 129317540), (20, 84056401), (22, 76414910), (26, 64658770), (44, 38207455), (52, 32329385), (55, 30565964), (65, 25863508), (110, 15282982), (121, 13893620), (130, 12931754), (143, 11756140), (220, 7641491), (242, 6946810), (260, 6465877), (286, 5878070), (484, 3473405), (572, 2939035), (605, 2778724), (715, 2351228), (1210, 1389362), (1430, 1175614), (1573, 1068740), (2420, 694681), (2860, 587807), (3146, 534370), (6292, 267185), (7865, 213748), (15730, 106874), (31460, 53437)]