201399640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387307}}^1$

素因数の和:387331

約数の個数: 32

約数和(自身を含む): 488008080

約数和(自身を除く): 286608440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387307, 774614, 1549228, 1936535, 3098456, 3873070, 5034991, 7746140, 10069982, 15492280, 20139964, 25174955, 40279928, 50349910, 100699820, 201399640]

約数ペア:

[(1, 201399640), (2, 100699820), (4, 50349910), (5, 40279928), (8, 25174955), (10, 20139964), (13, 15492280), (20, 10069982), (26, 7746140), (40, 5034991), (52, 3873070), (65, 3098456), (104, 1936535), (130, 1549228), (260, 774614), (520, 387307)]