20161689375

素因数分解:

$3^1\times 5^4\times {\mathrm{139}}^1\times {\mathrm{77359}}^1$

素因数の和:77521

約数の個数: 40

約数和(自身を含む): 33834169600

約数和(自身を除く): 13672480225

約数列:

[1, 3, 5, 15, 25, 75, 125, 139, 375, 417, 625, 695, 1875, 2085, 3475, 10425, 17375, 52125, 77359, 86875, 232077, 260625, 386795, 1160385, 1933975, 5801925, 9669875, 10752901, 29009625, 32258703, 48349375, 53764505, 145048125, 161293515, 268822525, 806467575, 1344112625, 4032337875, 6720563125, 20161689375]

約数ペア:

[(1, 20161689375), (3, 6720563125), (5, 4032337875), (15, 1344112625), (25, 806467575), (75, 268822525), (125, 161293515), (139, 145048125), (375, 53764505), (417, 48349375), (625, 32258703), (695, 29009625), (1875, 10752901), (2085, 9669875), (3475, 5801925), (10425, 1933975), (17375, 1160385), (52125, 386795), (77359, 260625), (86875, 232077)]