290602640

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{7459}}^1$

素因数の和:7959

約数の個数: 40

約数和(自身を含む): 677129280

約数和(自身を除く): 386526640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2435, 3896, 4870, 7459, 7792, 9740, 14918, 19480, 29836, 37295, 38960, 59672, 74590, 119344, 149180, 298360, 596720, 3632533, 7265066, 14530132, 18162665, 29060264, 36325330, 58120528, 72650660, 145301320, 290602640]

約数ペア:

[(1, 290602640), (2, 145301320), (4, 72650660), (5, 58120528), (8, 36325330), (10, 29060264), (16, 18162665), (20, 14530132), (40, 7265066), (80, 3632533), (487, 596720), (974, 298360), (1948, 149180), (2435, 119344), (3896, 74590), (4870, 59672), (7459, 38960), (7792, 37295), (9740, 29836), (14918, 19480)]