66712640

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1279}}^1$

素因数の和:1459

約数の個数: 56

約数和(自身を含む): 159959040

約数和(自身を除く): 93246400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 652, 815, 1279, 1304, 1630, 2558, 2608, 3260, 5116, 5216, 6395, 6520, 10232, 10432, 12790, 13040, 20464, 25580, 26080, 40928, 51160, 52160, 81856, 102320, 204640, 208477, 409280, 416954, 833908, 1042385, 1667816, 2084770, 3335632, 4169540, 6671264, 8339080, 13342528, 16678160, 33356320, 66712640]

約数ペア:

[(1, 66712640), (2, 33356320), (4, 16678160), (5, 13342528), (8, 8339080), (10, 6671264), (16, 4169540), (20, 3335632), (32, 2084770), (40, 1667816), (64, 1042385), (80, 833908), (160, 416954), (163, 409280), (320, 208477), (326, 204640), (652, 102320), (815, 81856), (1279, 52160), (1304, 51160), (1630, 40928), (2558, 26080), (2608, 25580), (3260, 20464), (5116, 13040), (5216, 12790), (6395, 10432), (6520, 10232)]