21722080

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1069}}^1$

素因数の和:1211

約数の個数: 48

約数和(自身を含む): 51770880

約数和(自身を除く): 30048800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1069, 1270, 2032, 2138, 2540, 4064, 4276, 5080, 5345, 8552, 10160, 10690, 17104, 20320, 21380, 34208, 42760, 85520, 135763, 171040, 271526, 543052, 678815, 1086104, 1357630, 2172208, 2715260, 4344416, 5430520, 10861040, 21722080]

約数ペア:

[(1, 21722080), (2, 10861040), (4, 5430520), (5, 4344416), (8, 2715260), (10, 2172208), (16, 1357630), (20, 1086104), (32, 678815), (40, 543052), (80, 271526), (127, 171040), (160, 135763), (254, 85520), (508, 42760), (635, 34208), (1016, 21380), (1069, 20320), (1270, 17104), (2032, 10690), (2138, 10160), (2540, 8552), (4064, 5345), (4276, 5080)]