220917500

素因数分解:

$2^2\times 5^4\times {\mathrm{97}}^1\times {\mathrm{911}}^1$

素因数の和:1032

約数の個数: 60

約数和(自身を含む): 488618592

約数和(自身を除く): 267701092

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 625, 911, 970, 1250, 1822, 1940, 2425, 2500, 3644, 4555, 4850, 9110, 9700, 12125, 18220, 22775, 24250, 45550, 48500, 60625, 88367, 91100, 113875, 121250, 176734, 227750, 242500, 353468, 441835, 455500, 569375, 883670, 1138750, 1767340, 2209175, 2277500, 4418350, 8836700, 11045875, 22091750, 44183500, 55229375, 110458750, 220917500]

約数ペア:

[(1, 220917500), (2, 110458750), (4, 55229375), (5, 44183500), (10, 22091750), (20, 11045875), (25, 8836700), (50, 4418350), (97, 2277500), (100, 2209175), (125, 1767340), (194, 1138750), (250, 883670), (388, 569375), (485, 455500), (500, 441835), (625, 353468), (911, 242500), (970, 227750), (1250, 176734), (1822, 121250), (1940, 113875), (2425, 91100), (2500, 88367), (3644, 60625), (4555, 48500), (4850, 45550), (9110, 24250), (9700, 22775), (12125, 18220)]