19970625

素因数分解:

$3^1\times 5^4\times {\mathrm{10651}}^1$

素因数の和:10674

約数の個数: 20

約数和(自身を含む): 33276848

約数和(自身を除く): 13306223

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 10651, 31953, 53255, 159765, 266275, 798825, 1331375, 3994125, 6656875, 19970625]

約数ペア:

[(1, 19970625), (3, 6656875), (5, 3994125), (15, 1331375), (25, 798825), (75, 266275), (125, 159765), (375, 53255), (625, 31953), (1875, 10651)]