290620226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 515966976

約数和(自身を除く): 225346750

約数列:

[1, 2, 13, 23, 26, 31, 46, 61, 62, 122, 257, 299, 403, 514, 598, 713, 793, 806, 1403, 1426, 1586, 1891, 2806, 3341, 3782, 5911, 6682, 7967, 9269, 11822, 15677, 15934, 18239, 18538, 24583, 31354, 36478, 43493, 49166, 76843, 86986, 103571, 153686, 183241, 203801, 207142, 360571, 366482, 407602, 485987, 565409, 721142, 971974, 1130818, 2382133, 4687423, 4764266, 6317831, 9374846, 11177701, 12635662, 22355402, 145310113, 290620226]

約数ペア:

[(1, 290620226), (2, 145310113), (13, 22355402), (23, 12635662), (26, 11177701), (31, 9374846), (46, 6317831), (61, 4764266), (62, 4687423), (122, 2382133), (257, 1130818), (299, 971974), (403, 721142), (514, 565409), (598, 485987), (713, 407602), (793, 366482), (806, 360571), (1403, 207142), (1426, 203801), (1586, 183241), (1891, 153686), (2806, 103571), (3341, 86986), (3782, 76843), (5911, 49166), (6682, 43493), (7967, 36478), (9269, 31354), (11822, 24583), (15677, 18538), (15934, 18239)]