81812906

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1439}}^1$

素因数の和:1610

約数の個数: 32

約数和(自身を含む): 145981440

約数和(自身を除く): 64168534

約数列:

[1, 2, 7, 14, 31, 62, 131, 217, 262, 434, 917, 1439, 1834, 2878, 4061, 8122, 10073, 20146, 28427, 44609, 56854, 89218, 188509, 312263, 377018, 624526, 1319563, 2639126, 5843779, 11687558, 40906453, 81812906]

約数ペア:

[(1, 81812906), (2, 40906453), (7, 11687558), (14, 5843779), (31, 2639126), (62, 1319563), (131, 624526), (217, 377018), (262, 312263), (434, 188509), (917, 89218), (1439, 56854), (1834, 44609), (2878, 28427), (4061, 20146), (8122, 10073)]