215658580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{1237}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 474203520

約数和(自身を除く): 258544940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 379, 460, 758, 1237, 1516, 1895, 2474, 3790, 4948, 6185, 7580, 8717, 12370, 17434, 24740, 28451, 34868, 43585, 56902, 87170, 113804, 142255, 174340, 284510, 468823, 569020, 937646, 1875292, 2344115, 4688230, 9376460, 10782929, 21565858, 43131716, 53914645, 107829290, 215658580]

約数ペア:

[(1, 215658580), (2, 107829290), (4, 53914645), (5, 43131716), (10, 21565858), (20, 10782929), (23, 9376460), (46, 4688230), (92, 2344115), (115, 1875292), (230, 937646), (379, 569020), (460, 468823), (758, 284510), (1237, 174340), (1516, 142255), (1895, 113804), (2474, 87170), (3790, 56902), (4948, 43585), (6185, 34868), (7580, 28451), (8717, 24740), (12370, 17434)]