20435920

素因数分解:

$2^4\times 5^1\times {\mathrm{467}}^1\times {\mathrm{547}}^1$

素因数の和:1027

約数の個数: 40

約数和(自身を含む): 47702304

約数和(自身を除く): 27266384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 467, 547, 934, 1094, 1868, 2188, 2335, 2735, 3736, 4376, 4670, 5470, 7472, 8752, 9340, 10940, 18680, 21880, 37360, 43760, 255449, 510898, 1021796, 1277245, 2043592, 2554490, 4087184, 5108980, 10217960, 20435920]

約数ペア:

[(1, 20435920), (2, 10217960), (4, 5108980), (5, 4087184), (8, 2554490), (10, 2043592), (16, 1277245), (20, 1021796), (40, 510898), (80, 255449), (467, 43760), (547, 37360), (934, 21880), (1094, 18680), (1868, 10940), (2188, 9340), (2335, 8752), (2735, 7472), (3736, 5470), (4376, 4670)]