20857575645

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1\times {\mathrm{631}}^1$

素因数の和:1067

約数の個数: 96

約数和(自身を含む): 38261583360

約数和(自身を除く): 17404007715

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 109, 115, 207, 293, 327, 345, 545, 631, 879, 981, 1035, 1465, 1635, 1893, 2507, 2637, 3155, 4395, 4905, 5679, 6739, 7521, 9465, 12535, 13185, 14513, 20217, 22563, 28395, 31937, 33695, 37605, 43539, 60651, 68779, 72565, 95811, 101085, 112815, 130617, 159685, 184883, 206337, 217695, 287433, 303255, 343895, 479055, 554649, 619011, 653085, 734551, 924415, 1031685, 1437165, 1581917, 1663947, 2203653, 2773245, 3095055, 3672755, 4252309, 4745751, 6610959, 7909585, 8319735, 11018265, 12756927, 14237253, 20152247, 21261545, 23728755, 33054795, 38270781, 60456741, 63784635, 71186265, 100761235, 181370223, 191353905, 302283705, 463501681, 906851115, 1390505043, 2317508405, 4171515129, 6952525215, 20857575645]

約数ペア:

[(1, 20857575645), (3, 6952525215), (5, 4171515129), (9, 2317508405), (15, 1390505043), (23, 906851115), (45, 463501681), (69, 302283705), (109, 191353905), (115, 181370223), (207, 100761235), (293, 71186265), (327, 63784635), (345, 60456741), (545, 38270781), (631, 33054795), (879, 23728755), (981, 21261545), (1035, 20152247), (1465, 14237253), (1635, 12756927), (1893, 11018265), (2507, 8319735), (2637, 7909585), (3155, 6610959), (4395, 4745751), (4905, 4252309), (5679, 3672755), (6739, 3095055), (7521, 2773245), (9465, 2203653), (12535, 1663947), (13185, 1581917), (14513, 1437165), (20217, 1031685), (22563, 924415), (28395, 734551), (31937, 653085), (33695, 619011), (37605, 554649), (43539, 479055), (60651, 343895), (68779, 303255), (72565, 287433), (95811, 217695), (101085, 206337), (112815, 184883), (130617, 159685)]