281996638

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{271}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 549918720

約数和(自身を除く): 267922082

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 233, 271, 319, 406, 466, 542, 638, 1631, 1897, 2233, 2563, 2981, 3262, 3794, 4466, 5126, 5962, 6757, 7859, 13514, 15718, 17941, 20867, 35882, 41734, 47299, 55013, 63143, 74327, 86449, 94598, 110026, 126286, 148654, 172898, 442001, 520289, 605143, 694573, 884002, 1040578, 1210286, 1389146, 1831147, 3662294, 4862011, 9724022, 12818029, 20142617, 25636058, 40285234, 140998319, 281996638]

約数ペア:

[(1, 281996638), (2, 140998319), (7, 40285234), (11, 25636058), (14, 20142617), (22, 12818029), (29, 9724022), (58, 4862011), (77, 3662294), (154, 1831147), (203, 1389146), (233, 1210286), (271, 1040578), (319, 884002), (406, 694573), (466, 605143), (542, 520289), (638, 442001), (1631, 172898), (1897, 148654), (2233, 126286), (2563, 110026), (2981, 94598), (3262, 86449), (3794, 74327), (4466, 63143), (5126, 55013), (5962, 47299), (6757, 41734), (7859, 35882), (13514, 20867), (15718, 17941)]