20095880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10253}}^1$

素因数の和:10278

約数の個数: 48

約数和(自身を含む): 52603020

約数和(自身を除く): 32507140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10253, 20506, 41012, 51265, 71771, 82024, 102530, 143542, 205060, 287084, 358855, 410120, 502397, 574168, 717710, 1004794, 1435420, 2009588, 2511985, 2870840, 4019176, 5023970, 10047940, 20095880]

約数ペア:

[(1, 20095880), (2, 10047940), (4, 5023970), (5, 4019176), (7, 2870840), (8, 2511985), (10, 2009588), (14, 1435420), (20, 1004794), (28, 717710), (35, 574168), (40, 502397), (49, 410120), (56, 358855), (70, 287084), (98, 205060), (140, 143542), (196, 102530), (245, 82024), (280, 71771), (392, 51265), (490, 41012), (980, 20506), (1960, 10253)]