20129392415

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 28192969728

約数和(自身を除く): 8063577313

約数列:

[1, 5, 11, 43, 47, 55, 101, 121, 163, 215, 235, 473, 505, 517, 605, 815, 1111, 1793, 2021, 2365, 2585, 4343, 4747, 5203, 5555, 5687, 7009, 7661, 8965, 10105, 12221, 16463, 19723, 21715, 22231, 23735, 26015, 28435, 35045, 38305, 47773, 52217, 61105, 77099, 82315, 84271, 98615, 111155, 181093, 204121, 238865, 244541, 261085, 329423, 385495, 421355, 525503, 574387, 707909, 773761, 848089, 905465, 926981, 1020605, 1222705, 1647115, 1992023, 2245331, 2627515, 2871935, 3539545, 3623653, 3868805, 4240445, 4634905, 7786999, 8511371, 9960115, 11226655, 18118265, 24698641, 33271723, 38934995, 39860183, 42556855, 85656989, 93625081, 123493205, 166358615, 199300915, 365988953, 428284945, 468125405, 1829944765, 4025878483, 20129392415]

約数ペア:

[(1, 20129392415), (5, 4025878483), (11, 1829944765), (43, 468125405), (47, 428284945), (55, 365988953), (101, 199300915), (121, 166358615), (163, 123493205), (215, 93625081), (235, 85656989), (473, 42556855), (505, 39860183), (517, 38934995), (605, 33271723), (815, 24698641), (1111, 18118265), (1793, 11226655), (2021, 9960115), (2365, 8511371), (2585, 7786999), (4343, 4634905), (4747, 4240445), (5203, 3868805), (5555, 3623653), (5687, 3539545), (7009, 2871935), (7661, 2627515), (8965, 2245331), (10105, 1992023), (12221, 1647115), (16463, 1222705), (19723, 1020605), (21715, 926981), (22231, 905465), (23735, 848089), (26015, 773761), (28435, 707909), (35045, 574387), (38305, 525503), (47773, 421355), (52217, 385495), (61105, 329423), (77099, 261085), (82315, 244541), (84271, 238865), (98615, 204121), (111155, 181093)]