81262625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 106589184

約数和(自身を除く): 25326559

約数列:

[1, 5, 25, 31, 67, 125, 155, 313, 335, 775, 1565, 1675, 2077, 3875, 7825, 8375, 9703, 10385, 20971, 39125, 48515, 51925, 104855, 242575, 259625, 524275, 650101, 1212875, 2621375, 3250505, 16252525, 81262625]

約数ペア:

[(1, 81262625), (5, 16252525), (25, 3250505), (31, 2621375), (67, 1212875), (125, 650101), (155, 524275), (313, 259625), (335, 242575), (775, 104855), (1565, 51925), (1675, 48515), (2077, 39125), (3875, 20971), (7825, 10385), (8375, 9703)]