78789815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{631}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 108936576

約数和(自身を除く): 30146761

約数列:

[1, 5, 13, 17, 65, 85, 113, 221, 565, 631, 1105, 1469, 1921, 3155, 7345, 8203, 9605, 10727, 24973, 41015, 53635, 71303, 124865, 139451, 356515, 697255, 926939, 1212151, 4634695, 6060755, 15757963, 78789815]

約数ペア:

[(1, 78789815), (5, 15757963), (13, 6060755), (17, 4634695), (65, 1212151), (85, 926939), (113, 697255), (221, 356515), (565, 139451), (631, 124865), (1105, 71303), (1469, 53635), (1921, 41015), (3155, 24973), (7345, 10727), (8203, 9605)]