48872140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 105283584

約数和(自身を除く): 56411444

約数列:

[1, 2, 4, 5, 10, 20, 71, 127, 142, 254, 271, 284, 355, 508, 542, 635, 710, 1084, 1270, 1355, 1420, 2540, 2710, 5420, 9017, 18034, 19241, 34417, 36068, 38482, 45085, 68834, 76964, 90170, 96205, 137668, 172085, 180340, 192410, 344170, 384820, 688340, 2443607, 4887214, 9774428, 12218035, 24436070, 48872140]

約数ペア:

[(1, 48872140), (2, 24436070), (4, 12218035), (5, 9774428), (10, 4887214), (20, 2443607), (71, 688340), (127, 384820), (142, 344170), (254, 192410), (271, 180340), (284, 172085), (355, 137668), (508, 96205), (542, 90170), (635, 76964), (710, 68834), (1084, 45085), (1270, 38482), (1355, 36068), (1420, 34417), (2540, 19241), (2710, 18034), (5420, 9017)]