1816880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1747}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 4551792

約数和(自身を除く): 2734912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1747, 3494, 6988, 8735, 13976, 17470, 22711, 27952, 34940, 45422, 69880, 90844, 113555, 139760, 181688, 227110, 363376, 454220, 908440, 1816880]

約数ペア:

[(1, 1816880), (2, 908440), (4, 454220), (5, 363376), (8, 227110), (10, 181688), (13, 139760), (16, 113555), (20, 90844), (26, 69880), (40, 45422), (52, 34940), (65, 27952), (80, 22711), (104, 17470), (130, 13976), (208, 8735), (260, 6988), (520, 3494), (1040, 1747)]