218006945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 289118592

約数和(自身を除く): 71111647

約数列:

[1, 5, 13, 65, 67, 113, 335, 443, 565, 871, 1469, 2215, 4355, 5759, 7345, 7571, 28795, 29681, 37855, 50059, 98423, 148405, 250295, 385853, 492115, 650767, 1929265, 3253835, 3353953, 16769765, 43601389, 218006945]

約数ペア:

[(1, 218006945), (5, 43601389), (13, 16769765), (65, 3353953), (67, 3253835), (113, 1929265), (335, 650767), (443, 492115), (565, 385853), (871, 250295), (1469, 148405), (2215, 98423), (4355, 50059), (5759, 37855), (7345, 29681), (7571, 28795)]