215511110

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{4519}}^1$

素因数の和:4796

約数の個数: 32

約数和(自身を含む): 410054400

約数和(自身を除く): 194543290

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 251, 502, 1255, 2510, 4519, 4769, 9038, 9538, 22595, 23845, 45190, 47690, 85861, 171722, 429305, 858610, 1134269, 2268538, 5671345, 11342690, 21551111, 43102222, 107755555, 215511110]

約数ペア:

[(1, 215511110), (2, 107755555), (5, 43102222), (10, 21551111), (19, 11342690), (38, 5671345), (95, 2268538), (190, 1134269), (251, 858610), (502, 429305), (1255, 171722), (2510, 85861), (4519, 47690), (4769, 45190), (9038, 23845), (9538, 22595)]