666691792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{5351}}^1$

素因数の和:5971

約数の個数: 40

約数和(自身を含む): 1393660800

約数和(自身を除く): 726969008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 599, 1198, 2396, 4792, 5351, 7787, 9584, 10702, 15574, 21404, 31148, 42808, 62296, 69563, 85616, 124592, 139126, 278252, 556504, 1113008, 3205249, 6410498, 12820996, 25641992, 41668237, 51283984, 83336474, 166672948, 333345896, 666691792]

約数ペア:

[(1, 666691792), (2, 333345896), (4, 166672948), (8, 83336474), (13, 51283984), (16, 41668237), (26, 25641992), (52, 12820996), (104, 6410498), (208, 3205249), (599, 1113008), (1198, 556504), (2396, 278252), (4792, 139126), (5351, 124592), (7787, 85616), (9584, 69563), (10702, 62296), (15574, 42808), (21404, 31148)]