68477890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2647}}^1$

素因数の和:2866

約数の個数: 32

約数和(自身を含む): 133459200

約数和(自身を除く): 64981310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2587, 2647, 5174, 5294, 12935, 13235, 25870, 26470, 34411, 68822, 172055, 344110, 526753, 1053506, 2633765, 5267530, 6847789, 13695578, 34238945, 68477890]

約数ペア:

[(1, 68477890), (2, 34238945), (5, 13695578), (10, 6847789), (13, 5267530), (26, 2633765), (65, 1053506), (130, 526753), (199, 344110), (398, 172055), (995, 68822), (1990, 34411), (2587, 26470), (2647, 25870), (5174, 13235), (5294, 12935)]