31485880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{27143}}^1$

素因数の和:27183

約数の個数: 32

約数和(自身を含む): 73288800

約数和(自身を除く): 41802920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 27143, 54286, 108572, 135715, 217144, 271430, 542860, 787147, 1085720, 1574294, 3148588, 3935735, 6297176, 7871470, 15742940, 31485880]

約数ペア:

[(1, 31485880), (2, 15742940), (4, 7871470), (5, 6297176), (8, 3935735), (10, 3148588), (20, 1574294), (29, 1085720), (40, 787147), (58, 542860), (116, 271430), (145, 217144), (232, 135715), (290, 108572), (580, 54286), (1160, 27143)]