640652058

素因数分解:

$2^1\times 3^3\times {\mathrm{449}}^1\times {\mathrm{26423}}^1$

素因数の和:26883

約数の個数: 32

約数和(自身を含む): 1426896000

約数和(自身を除く): 786243942

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 449, 898, 1347, 2694, 4041, 8082, 12123, 24246, 26423, 52846, 79269, 158538, 237807, 475614, 713421, 1426842, 11863927, 23727854, 35591781, 71183562, 106775343, 213550686, 320326029, 640652058]

約数ペア:

[(1, 640652058), (2, 320326029), (3, 213550686), (6, 106775343), (9, 71183562), (18, 35591781), (27, 23727854), (54, 11863927), (449, 1426842), (898, 713421), (1347, 475614), (2694, 237807), (4041, 158538), (8082, 79269), (12123, 52846), (24246, 26423)]