39771920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4561}}^1$

素因数の和:4683

約数の個数: 40

約数和(自身を含む): 93338520

約数和(自身を除く): 53566600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 4561, 8720, 9122, 18244, 22805, 36488, 45610, 72976, 91220, 182440, 364880, 497149, 994298, 1988596, 2485745, 3977192, 4971490, 7954384, 9942980, 19885960, 39771920]

約数ペア:

[(1, 39771920), (2, 19885960), (4, 9942980), (5, 7954384), (8, 4971490), (10, 3977192), (16, 2485745), (20, 1988596), (40, 994298), (80, 497149), (109, 364880), (218, 182440), (436, 91220), (545, 72976), (872, 45610), (1090, 36488), (1744, 22805), (2180, 18244), (4360, 9122), (4561, 8720)]