47427640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 115718400

約数和(自身を除く): 68290760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 223, 260, 409, 446, 520, 818, 892, 1115, 1636, 1784, 2045, 2230, 2899, 3272, 4090, 4460, 5317, 5798, 8180, 8920, 10634, 11596, 14495, 16360, 21268, 23192, 26585, 28990, 42536, 53170, 57980, 91207, 106340, 115960, 182414, 212680, 364828, 456035, 729656, 912070, 1185691, 1824140, 2371382, 3648280, 4742764, 5928455, 9485528, 11856910, 23713820, 47427640]

約数ペア:

[(1, 47427640), (2, 23713820), (4, 11856910), (5, 9485528), (8, 5928455), (10, 4742764), (13, 3648280), (20, 2371382), (26, 1824140), (40, 1185691), (52, 912070), (65, 729656), (104, 456035), (130, 364828), (223, 212680), (260, 182414), (409, 115960), (446, 106340), (520, 91207), (818, 57980), (892, 53170), (1115, 42536), (1636, 28990), (1784, 26585), (2045, 23192), (2230, 21268), (2899, 16360), (3272, 14495), (4090, 11596), (4460, 10634), (5317, 8920), (5798, 8180)]