13120020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{72889}}^1$

素因数の和:72904

約数の個数: 36

約数和(自身を含む): 39797940

約数和(自身を除く): 26677920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 72889, 145778, 218667, 291556, 364445, 437334, 656001, 728890, 874668, 1093335, 1312002, 1457780, 2186670, 2624004, 3280005, 4373340, 6560010, 13120020]

約数ペア:

[(1, 13120020), (2, 6560010), (3, 4373340), (4, 3280005), (5, 2624004), (6, 2186670), (9, 1457780), (10, 1312002), (12, 1093335), (15, 874668), (18, 728890), (20, 656001), (30, 437334), (36, 364445), (45, 291556), (60, 218667), (90, 145778), (180, 72889)]