20396475

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 42497280

約数和(自身を除く): 22100805

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 41, 45, 55, 67, 75, 99, 123, 135, 165, 201, 205, 225, 275, 297, 335, 369, 451, 495, 603, 615, 675, 737, 825, 1005, 1025, 1107, 1353, 1485, 1675, 1809, 1845, 2211, 2255, 2475, 2747, 3015, 3075, 3685, 4059, 5025, 5535, 6633, 6765, 7425, 8241, 9045, 9225, 11055, 11275, 12177, 13735, 15075, 18425, 19899, 20295, 24723, 27675, 30217, 33165, 33825, 41205, 45225, 55275, 60885, 68675, 74169, 90651, 99495, 101475, 123615, 151085, 165825, 206025, 271953, 304425, 370845, 453255, 497475, 618075, 755425, 815859, 1359765, 1854225, 2266275, 4079295, 6798825, 20396475]

約数ペア:

[(1, 20396475), (3, 6798825), (5, 4079295), (9, 2266275), (11, 1854225), (15, 1359765), (25, 815859), (27, 755425), (33, 618075), (41, 497475), (45, 453255), (55, 370845), (67, 304425), (75, 271953), (99, 206025), (123, 165825), (135, 151085), (165, 123615), (201, 101475), (205, 99495), (225, 90651), (275, 74169), (297, 68675), (335, 60885), (369, 55275), (451, 45225), (495, 41205), (603, 33825), (615, 33165), (675, 30217), (737, 27675), (825, 24723), (1005, 20295), (1025, 19899), (1107, 18425), (1353, 15075), (1485, 13735), (1675, 12177), (1809, 11275), (1845, 11055), (2211, 9225), (2255, 9045), (2475, 8241), (2747, 7425), (3015, 6765), (3075, 6633), (3685, 5535), (4059, 5025)]