289010995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 455132160

約数和(自身を除く): 166121165

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 101, 133, 247, 331, 455, 505, 665, 707, 1235, 1313, 1655, 1729, 1919, 2317, 3535, 4303, 6289, 6565, 8645, 9191, 9595, 11585, 13433, 21515, 24947, 30121, 31445, 33431, 44023, 45955, 67165, 81757, 124735, 150605, 167155, 174629, 220115, 234017, 408785, 434603, 572299, 635189, 873145, 1170085, 2173015, 2861495, 3042221, 3175945, 4446323, 8257457, 15211105, 22231615, 41287285, 57802199, 289010995]

約数ペア:

[(1, 289010995), (5, 57802199), (7, 41287285), (13, 22231615), (19, 15211105), (35, 8257457), (65, 4446323), (91, 3175945), (95, 3042221), (101, 2861495), (133, 2173015), (247, 1170085), (331, 873145), (455, 635189), (505, 572299), (665, 434603), (707, 408785), (1235, 234017), (1313, 220115), (1655, 174629), (1729, 167155), (1919, 150605), (2317, 124735), (3535, 81757), (4303, 67165), (6289, 45955), (6565, 44023), (8645, 33431), (9191, 31445), (9595, 30121), (11585, 24947), (13433, 21515)]