15654980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6469}}^1$

素因数の和:6500

約数の個数: 36

約数和(自身を含む): 36141420

約数和(自身を除く): 20486440

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 6469, 12938, 25876, 32345, 64690, 71159, 129380, 142318, 284636, 355795, 711590, 782749, 1423180, 1565498, 3130996, 3913745, 7827490, 15654980]

約数ペア:

[(1, 15654980), (2, 7827490), (4, 3913745), (5, 3130996), (10, 1565498), (11, 1423180), (20, 782749), (22, 711590), (44, 355795), (55, 284636), (110, 142318), (121, 129380), (220, 71159), (242, 64690), (484, 32345), (605, 25876), (1210, 12938), (2420, 6469)]