1353174980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1\times {\mathrm{2161}}^1$

素因数の和:2540

約数の個数: 48

約数和(自身を含む): 2876670720

約数和(自身を除く): 1523495740

約数列:

[1, 2, 4, 5, 10, 20, 131, 239, 262, 478, 524, 655, 956, 1195, 1310, 2161, 2390, 2620, 4322, 4780, 8644, 10805, 21610, 31309, 43220, 62618, 125236, 156545, 283091, 313090, 516479, 566182, 626180, 1032958, 1132364, 1415455, 2065916, 2582395, 2830910, 5164790, 5661820, 10329580, 67658749, 135317498, 270634996, 338293745, 676587490, 1353174980]

約数ペア:

[(1, 1353174980), (2, 676587490), (4, 338293745), (5, 270634996), (10, 135317498), (20, 67658749), (131, 10329580), (239, 5661820), (262, 5164790), (478, 2830910), (524, 2582395), (655, 2065916), (956, 1415455), (1195, 1132364), (1310, 1032958), (2161, 626180), (2390, 566182), (2620, 516479), (4322, 313090), (4780, 283091), (8644, 156545), (10805, 125236), (21610, 62618), (31309, 43220)]