290262590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{21613}}^1$

素因数の和:21716

約数の個数: 32

約数和(自身を含む): 560234880

約数和(自身を除く): 269972290

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 2686, 6715, 13430, 21613, 43226, 108065, 216130, 367421, 734842, 1707427, 1837105, 3414854, 3674210, 8537135, 17074270, 29026259, 58052518, 145131295, 290262590]

約数ペア:

[(1, 290262590), (2, 145131295), (5, 58052518), (10, 29026259), (17, 17074270), (34, 8537135), (79, 3674210), (85, 3414854), (158, 1837105), (170, 1707427), (395, 734842), (790, 367421), (1343, 216130), (2686, 108065), (6715, 43226), (13430, 21613)]