81031875

素因数分解:

$3^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{1879}}^1$

素因数の和:1925

約数の個数: 40

約数和(自身を含む): 140954880

約数和(自身を除く): 59923005

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 345, 375, 575, 625, 1725, 1875, 1879, 2875, 5637, 8625, 9395, 14375, 28185, 43125, 43217, 46975, 129651, 140925, 216085, 234875, 648255, 704625, 1080425, 1174375, 3241275, 3523125, 5402125, 16206375, 27010625, 81031875]

約数ペア:

[(1, 81031875), (3, 27010625), (5, 16206375), (15, 5402125), (23, 3523125), (25, 3241275), (69, 1174375), (75, 1080425), (115, 704625), (125, 648255), (345, 234875), (375, 216085), (575, 140925), (625, 129651), (1725, 46975), (1875, 43217), (1879, 43125), (2875, 28185), (5637, 14375), (8625, 9395)]