128391770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{31859}}^1$

素因数の和:31910

約数の個数: 32

約数和(自身を含む): 256919040

約数和(自身を除く): 128527270

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 31859, 63718, 159295, 318590, 414167, 828334, 987629, 1975258, 2070835, 4141670, 4938145, 9876290, 12839177, 25678354, 64195885, 128391770]

約数ペア:

[(1, 128391770), (2, 64195885), (5, 25678354), (10, 12839177), (13, 9876290), (26, 4938145), (31, 4141670), (62, 2070835), (65, 1975258), (130, 987629), (155, 828334), (310, 414167), (403, 318590), (806, 159295), (2015, 63718), (4030, 31859)]