19768125

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:847

約数の個数: 40

約数和(自身を含む): 35513632

約数和(自身を除く): 15745507

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 811, 975, 1625, 1875, 2433, 4055, 4875, 8125, 10543, 12165, 20275, 24375, 31629, 52715, 60825, 101375, 158145, 263575, 304125, 506875, 790725, 1317875, 1520625, 3953625, 6589375, 19768125]

約数ペア:

[(1, 19768125), (3, 6589375), (5, 3953625), (13, 1520625), (15, 1317875), (25, 790725), (39, 506875), (65, 304125), (75, 263575), (125, 158145), (195, 101375), (325, 60825), (375, 52715), (625, 31629), (811, 24375), (975, 20275), (1625, 12165), (1875, 10543), (2433, 8125), (4055, 4875)]