81433260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1163}}^1$

素因数の和:1567

約数の個数: 72

約数和(自身を含む): 247862160

約数和(自身を除く): 166428900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1163, 1167, 1556, 1945, 2326, 2334, 3489, 3501, 3890, 4652, 4668, 5815, 5835, 6978, 7002, 7780, 10467, 11630, 11670, 13956, 14004, 17445, 17505, 20934, 23260, 23340, 34890, 35010, 41868, 52335, 69780, 70020, 104670, 209340, 452407, 904814, 1357221, 1809628, 2262035, 2714442, 4071663, 4524070, 5428884, 6786105, 8143326, 9048140, 13572210, 16286652, 20358315, 27144420, 40716630, 81433260]

約数ペア:

[(1, 81433260), (2, 40716630), (3, 27144420), (4, 20358315), (5, 16286652), (6, 13572210), (9, 9048140), (10, 8143326), (12, 6786105), (15, 5428884), (18, 4524070), (20, 4071663), (30, 2714442), (36, 2262035), (45, 1809628), (60, 1357221), (90, 904814), (180, 452407), (389, 209340), (778, 104670), (1163, 70020), (1167, 69780), (1556, 52335), (1945, 41868), (2326, 35010), (2334, 34890), (3489, 23340), (3501, 23260), (3890, 20934), (4652, 17505), (4668, 17445), (5815, 14004), (5835, 13956), (6978, 11670), (7002, 11630), (7780, 10467)]