18102680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8539}}^1$

素因数の和:8603

約数の個数: 32

約数和(自身を含む): 41504400

約数和(自身を除く): 23401720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8539, 17078, 34156, 42695, 68312, 85390, 170780, 341560, 452567, 905134, 1810268, 2262835, 3620536, 4525670, 9051340, 18102680]

約数ペア:

[(1, 18102680), (2, 9051340), (4, 4525670), (5, 3620536), (8, 2262835), (10, 1810268), (20, 905134), (40, 452567), (53, 341560), (106, 170780), (212, 85390), (265, 68312), (424, 42695), (530, 34156), (1060, 17078), (2120, 8539)]