80851428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{320839}}^1$

素因数の和:320856

約数の個数: 36

約数和(自身を含む): 233571520

約数和(自身を除く): 152720092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 320839, 641678, 962517, 1283356, 1925034, 2245873, 2887551, 3850068, 4491746, 5775102, 6737619, 8983492, 11550204, 13475238, 20212857, 26950476, 40425714, 80851428]

約数ペア:

[(1, 80851428), (2, 40425714), (3, 26950476), (4, 20212857), (6, 13475238), (7, 11550204), (9, 8983492), (12, 6737619), (14, 5775102), (18, 4491746), (21, 3850068), (28, 2887551), (36, 2245873), (42, 1925034), (63, 1283356), (84, 962517), (126, 641678), (252, 320839)]