8004015

素因数分解:

$3^4\times 5^1\times {\mathrm{19763}}^1$

素因数の和:19780

約数の個数: 20

約数和(自身を含む): 14348664

約数和(自身を除く): 6344649

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 19763, 59289, 98815, 177867, 296445, 533601, 889335, 1600803, 2668005, 8004015]

約数ペア:

[(1, 8004015), (3, 2668005), (5, 1600803), (9, 889335), (15, 533601), (27, 296445), (45, 177867), (81, 98815), (135, 59289), (405, 19763)]