20043375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 37559808

約数和(自身を除く): 17516433

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 75, 113, 125, 129, 165, 215, 275, 339, 375, 473, 565, 645, 825, 1075, 1243, 1375, 1419, 1695, 2365, 2825, 3225, 3729, 4125, 4859, 5375, 6215, 7095, 8475, 11825, 14125, 14577, 16125, 18645, 24295, 31075, 35475, 42375, 53449, 59125, 72885, 93225, 121475, 155375, 160347, 177375, 267245, 364425, 466125, 607375, 801735, 1336225, 1822125, 4008675, 6681125, 20043375]

約数ペア:

[(1, 20043375), (3, 6681125), (5, 4008675), (11, 1822125), (15, 1336225), (25, 801735), (33, 607375), (43, 466125), (55, 364425), (75, 267245), (113, 177375), (125, 160347), (129, 155375), (165, 121475), (215, 93225), (275, 72885), (339, 59125), (375, 53449), (473, 42375), (565, 35475), (645, 31075), (825, 24295), (1075, 18645), (1243, 16125), (1375, 14577), (1419, 14125), (1695, 11825), (2365, 8475), (2825, 7095), (3225, 6215), (3729, 5375), (4125, 4859)]