13561640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6397}}^1$

素因数の和:6461

約数の個数: 32

約数和(自身を含む): 31094280

約数和(自身を除く): 17532640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 6397, 12794, 25588, 31985, 51176, 63970, 127940, 255880, 339041, 678082, 1356164, 1695205, 2712328, 3390410, 6780820, 13561640]

約数ペア:

[(1, 13561640), (2, 6780820), (4, 3390410), (5, 2712328), (8, 1695205), (10, 1356164), (20, 678082), (40, 339041), (53, 255880), (106, 127940), (212, 63970), (265, 51176), (424, 31985), (530, 25588), (1060, 12794), (2120, 6397)]