72207320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41981}}^1$

素因数の和:42035

約数の個数: 32

約数和(自身を含む): 166248720

約数和(自身を除く): 94041400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41981, 83962, 167924, 209905, 335848, 419810, 839620, 1679240, 1805183, 3610366, 7220732, 9025915, 14441464, 18051830, 36103660, 72207320]

約数ペア:

[(1, 72207320), (2, 36103660), (4, 18051830), (5, 14441464), (8, 9025915), (10, 7220732), (20, 3610366), (40, 1805183), (43, 1679240), (86, 839620), (172, 419810), (215, 335848), (344, 209905), (430, 167924), (860, 83962), (1720, 41981)]