20181245285

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1\times {\mathrm{757}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 24755673600

約数和(自身を除く): 4574428315

約数列:

[1, 5, 89, 139, 431, 445, 695, 757, 2155, 3785, 12371, 38359, 59909, 61855, 67373, 105223, 191795, 299545, 326267, 336865, 526115, 1631335, 5331901, 9364847, 26659505, 29037763, 45351113, 46824235, 145188815, 226755565, 4036249057, 20181245285]

約数ペア:

[(1, 20181245285), (5, 4036249057), (89, 226755565), (139, 145188815), (431, 46824235), (445, 45351113), (695, 29037763), (757, 26659505), (2155, 9364847), (3785, 5331901), (12371, 1631335), (38359, 526115), (59909, 336865), (61855, 326267), (67373, 299545), (105223, 191795)]