19738125

素因数分解:

$3^2\times 5^4\times {\mathrm{11}}^2\times {\mathrm{29}}^1$

素因数の和:77

約数の個数: 90

約数和(自身を含む): 40510470

約数和(自身を除く): 20772345

約数列:

[1, 3, 5, 9, 11, 15, 25, 29, 33, 45, 55, 75, 87, 99, 121, 125, 145, 165, 225, 261, 275, 319, 363, 375, 435, 495, 605, 625, 725, 825, 957, 1089, 1125, 1305, 1375, 1595, 1815, 1875, 2175, 2475, 2871, 3025, 3509, 3625, 4125, 4785, 5445, 5625, 6525, 6875, 7975, 9075, 10527, 10875, 12375, 14355, 15125, 17545, 18125, 20625, 23925, 27225, 31581, 32625, 39875, 45375, 52635, 54375, 61875, 71775, 75625, 87725, 119625, 136125, 157905, 163125, 199375, 226875, 263175, 358875, 438625, 598125, 680625, 789525, 1315875, 1794375, 2193125, 3947625, 6579375, 19738125]

約数ペア:

[(1, 19738125), (3, 6579375), (5, 3947625), (9, 2193125), (11, 1794375), (15, 1315875), (25, 789525), (29, 680625), (33, 598125), (45, 438625), (55, 358875), (75, 263175), (87, 226875), (99, 199375), (121, 163125), (125, 157905), (145, 136125), (165, 119625), (225, 87725), (261, 75625), (275, 71775), (319, 61875), (363, 54375), (375, 52635), (435, 45375), (495, 39875), (605, 32625), (625, 31581), (725, 27225), (825, 23925), (957, 20625), (1089, 18125), (1125, 17545), (1305, 15125), (1375, 14355), (1595, 12375), (1815, 10875), (1875, 10527), (2175, 9075), (2475, 7975), (2871, 6875), (3025, 6525), (3509, 5625), (3625, 5445), (4125, 4785)]