40104740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2113}}^1$

素因数の和:2208

約数の個数: 48

約数和(自身を含む): 91984368

約数和(自身を除く): 51879628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 2113, 3796, 4226, 4745, 8452, 9490, 10565, 18980, 21130, 27469, 42260, 54938, 109876, 137345, 154249, 274690, 308498, 549380, 616996, 771245, 1542490, 2005237, 3084980, 4010474, 8020948, 10026185, 20052370, 40104740]

約数ペア:

[(1, 40104740), (2, 20052370), (4, 10026185), (5, 8020948), (10, 4010474), (13, 3084980), (20, 2005237), (26, 1542490), (52, 771245), (65, 616996), (73, 549380), (130, 308498), (146, 274690), (260, 154249), (292, 137345), (365, 109876), (730, 54938), (949, 42260), (1460, 27469), (1898, 21130), (2113, 18980), (3796, 10565), (4226, 9490), (4745, 8452)]