20608575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 38330880

約数和(自身を除く): 17722305

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 919, 975, 1495, 1725, 2757, 4485, 4595, 7475, 11947, 13785, 21137, 22425, 22975, 35841, 59735, 63411, 68925, 105685, 179205, 274781, 298675, 317055, 528425, 824343, 896025, 1373905, 1585275, 4121715, 6869525, 20608575]

約数ペア:

[(1, 20608575), (3, 6869525), (5, 4121715), (13, 1585275), (15, 1373905), (23, 896025), (25, 824343), (39, 528425), (65, 317055), (69, 298675), (75, 274781), (115, 179205), (195, 105685), (299, 68925), (325, 63411), (345, 59735), (575, 35841), (897, 22975), (919, 22425), (975, 21137), (1495, 13785), (1725, 11947), (2757, 7475), (4485, 4595)]