1990755

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 3852576

約数和(自身を除く): 1861821

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 83, 117, 123, 195, 205, 249, 369, 415, 533, 585, 615, 747, 1079, 1245, 1599, 1845, 2665, 3237, 3403, 3735, 4797, 5395, 7995, 9711, 10209, 16185, 17015, 23985, 30627, 44239, 48555, 51045, 132717, 153135, 221195, 398151, 663585, 1990755]

約数ペア:

[(1, 1990755), (3, 663585), (5, 398151), (9, 221195), (13, 153135), (15, 132717), (39, 51045), (41, 48555), (45, 44239), (65, 30627), (83, 23985), (117, 17015), (123, 16185), (195, 10209), (205, 9711), (249, 7995), (369, 5395), (415, 4797), (533, 3735), (585, 3403), (615, 3237), (747, 2665), (1079, 1845), (1245, 1599)]