1990960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{607}}^1$

素因数の和:661

約数の個数: 40

約数和(自身を含む): 4749696

約数和(自身を除く): 2758736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 607, 656, 820, 1214, 1640, 2428, 3035, 3280, 4856, 6070, 9712, 12140, 24280, 24887, 48560, 49774, 99548, 124435, 199096, 248870, 398192, 497740, 995480, 1990960]

約数ペア:

[(1, 1990960), (2, 995480), (4, 497740), (5, 398192), (8, 248870), (10, 199096), (16, 124435), (20, 99548), (40, 49774), (41, 48560), (80, 24887), (82, 24280), (164, 12140), (205, 9712), (328, 6070), (410, 4856), (607, 3280), (656, 3035), (820, 2428), (1214, 1640)]