81800816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1987}}^1$

素因数の和:2109

約数の個数: 40

約数和(自身を含む): 165656064

約数和(自身を除く): 83855248

約数列:

[1, 2, 4, 8, 16, 31, 62, 83, 124, 166, 248, 332, 496, 664, 1328, 1987, 2573, 3974, 5146, 7948, 10292, 15896, 20584, 31792, 41168, 61597, 123194, 164921, 246388, 329842, 492776, 659684, 985552, 1319368, 2638736, 5112551, 10225102, 20450204, 40900408, 81800816]

約数ペア:

[(1, 81800816), (2, 40900408), (4, 20450204), (8, 10225102), (16, 5112551), (31, 2638736), (62, 1319368), (83, 985552), (124, 659684), (166, 492776), (248, 329842), (332, 246388), (496, 164921), (664, 123194), (1328, 61597), (1987, 41168), (2573, 31792), (3974, 20584), (5146, 15896), (7948, 10292)]