71313125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 40

約数和(自身を含む): 98143584

約数和(自身を除く): 26830459

約数列:

[1, 5, 13, 25, 65, 67, 125, 131, 325, 335, 625, 655, 871, 1625, 1675, 1703, 3275, 4355, 8125, 8375, 8515, 8777, 16375, 21775, 41875, 42575, 43885, 81875, 108875, 114101, 212875, 219425, 544375, 570505, 1064375, 1097125, 2852525, 5485625, 14262625, 71313125]

約数ペア:

[(1, 71313125), (5, 14262625), (13, 5485625), (25, 2852525), (65, 1097125), (67, 1064375), (125, 570505), (131, 544375), (325, 219425), (335, 212875), (625, 114101), (655, 108875), (871, 81875), (1625, 43885), (1675, 42575), (1703, 41875), (3275, 21775), (4355, 16375), (8125, 8777), (8375, 8515)]