19401850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1615

約数の個数: 48

約数和(自身を含む): 40934880

約数和(自身を除く): 21533030

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 650, 950, 1235, 1571, 2470, 3142, 6175, 7855, 12350, 15710, 20423, 29849, 39275, 40846, 59698, 78550, 102115, 149245, 204230, 298490, 388037, 510575, 746225, 776074, 1021150, 1492450, 1940185, 3880370, 9700925, 19401850]

約数ペア:

[(1, 19401850), (2, 9700925), (5, 3880370), (10, 1940185), (13, 1492450), (19, 1021150), (25, 776074), (26, 746225), (38, 510575), (50, 388037), (65, 298490), (95, 204230), (130, 149245), (190, 102115), (247, 78550), (325, 59698), (475, 40846), (494, 39275), (650, 29849), (950, 20423), (1235, 15710), (1571, 12350), (2470, 7855), (3142, 6175)]