72239240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17881}}^1$

素因数の和:17993

約数の個数: 32

約数和(自身を含む): 164156760

約数和(自身を除く): 91917520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17881, 35762, 71524, 89405, 143048, 178810, 357620, 715240, 1805981, 3611962, 7223924, 9029905, 14447848, 18059810, 36119620, 72239240]

約数ペア:

[(1, 72239240), (2, 36119620), (4, 18059810), (5, 14447848), (8, 9029905), (10, 7223924), (20, 3611962), (40, 1805981), (101, 715240), (202, 357620), (404, 178810), (505, 143048), (808, 89405), (1010, 71524), (2020, 35762), (4040, 17881)]