20165480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{953}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 47480580

約数和(自身を除く): 27315100

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 953, 1058, 1906, 2116, 2645, 3812, 4232, 4765, 5290, 7624, 9530, 10580, 19060, 21160, 21919, 38120, 43838, 87676, 109595, 175352, 219190, 438380, 504137, 876760, 1008274, 2016548, 2520685, 4033096, 5041370, 10082740, 20165480]

約数ペア:

[(1, 20165480), (2, 10082740), (4, 5041370), (5, 4033096), (8, 2520685), (10, 2016548), (20, 1008274), (23, 876760), (40, 504137), (46, 438380), (92, 219190), (115, 175352), (184, 109595), (230, 87676), (460, 43838), (529, 38120), (920, 21919), (953, 21160), (1058, 19060), (1906, 10580), (2116, 9530), (2645, 7624), (3812, 5290), (4232, 4765)]