1983740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 4644864

約数和(自身を除く): 2661124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 127, 142, 220, 254, 284, 355, 508, 635, 710, 781, 1270, 1397, 1420, 1562, 2540, 2794, 3124, 3905, 5588, 6985, 7810, 9017, 13970, 15620, 18034, 27940, 36068, 45085, 90170, 99187, 180340, 198374, 396748, 495935, 991870, 1983740]

約数ペア:

[(1, 1983740), (2, 991870), (4, 495935), (5, 396748), (10, 198374), (11, 180340), (20, 99187), (22, 90170), (44, 45085), (55, 36068), (71, 27940), (110, 18034), (127, 15620), (142, 13970), (220, 9017), (254, 7810), (284, 6985), (355, 5588), (508, 3905), (635, 3124), (710, 2794), (781, 2540), (1270, 1562), (1397, 1420)]