20216792475

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{281669}}^1$

素因数の和:281725

約数の個数: 72

約数和(自身を含む): 40864683600

約数和(自身を除く): 20647891125

約数列:

[1, 3, 5, 9, 11, 15, 25, 29, 33, 45, 55, 75, 87, 99, 145, 165, 225, 261, 275, 319, 435, 495, 725, 825, 957, 1305, 1595, 2175, 2475, 2871, 4785, 6525, 7975, 14355, 23925, 71775, 281669, 845007, 1408345, 2535021, 3098359, 4225035, 7041725, 8168401, 9295077, 12675105, 15491795, 21125175, 24505203, 27885231, 40842005, 46475385, 63375525, 73515609, 77458975, 89852411, 122526015, 139426155, 204210025, 232376925, 269557233, 367578045, 449262055, 612630075, 697130775, 808671699, 1347786165, 1837890225, 2246310275, 4043358495, 6738930825, 20216792475]

約数ペア:

[(1, 20216792475), (3, 6738930825), (5, 4043358495), (9, 2246310275), (11, 1837890225), (15, 1347786165), (25, 808671699), (29, 697130775), (33, 612630075), (45, 449262055), (55, 367578045), (75, 269557233), (87, 232376925), (99, 204210025), (145, 139426155), (165, 122526015), (225, 89852411), (261, 77458975), (275, 73515609), (319, 63375525), (435, 46475385), (495, 40842005), (725, 27885231), (825, 24505203), (957, 21125175), (1305, 15491795), (1595, 12675105), (2175, 9295077), (2475, 8168401), (2871, 7041725), (4785, 4225035), (6525, 3098359), (7975, 2535021), (14355, 1408345), (23925, 845007), (71775, 281669)]