290438239

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 379209600

約数和(自身を除く): 88771361

約数列:

[1, 7, 13, 47, 49, 89, 91, 109, 329, 611, 623, 637, 763, 1157, 1417, 2303, 4183, 4277, 4361, 5123, 5341, 8099, 9701, 9919, 29281, 29939, 35861, 54379, 56693, 66599, 67907, 69433, 126113, 204967, 251027, 380653, 455947, 466193, 475349, 882791, 2664571, 3191629, 3263351, 5927311, 6179537, 22341403, 41491177, 290438239]

約数ペア:

[(1, 290438239), (7, 41491177), (13, 22341403), (47, 6179537), (49, 5927311), (89, 3263351), (91, 3191629), (109, 2664571), (329, 882791), (611, 475349), (623, 466193), (637, 455947), (763, 380653), (1157, 251027), (1417, 204967), (2303, 126113), (4183, 69433), (4277, 67907), (4361, 66599), (5123, 56693), (5341, 54379), (8099, 35861), (9701, 29939), (9919, 29281)]