27894520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 65772000

約数和(自身を除く): 37877480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 173, 232, 278, 290, 346, 556, 580, 692, 695, 865, 1112, 1160, 1384, 1390, 1730, 2780, 3460, 4031, 5017, 5560, 6920, 8062, 10034, 16124, 20068, 20155, 24047, 25085, 32248, 40136, 40310, 48094, 50170, 80620, 96188, 100340, 120235, 161240, 192376, 200680, 240470, 480940, 697363, 961880, 1394726, 2789452, 3486815, 5578904, 6973630, 13947260, 27894520]

約数ペア:

[(1, 27894520), (2, 13947260), (4, 6973630), (5, 5578904), (8, 3486815), (10, 2789452), (20, 1394726), (29, 961880), (40, 697363), (58, 480940), (116, 240470), (139, 200680), (145, 192376), (173, 161240), (232, 120235), (278, 100340), (290, 96188), (346, 80620), (556, 50170), (580, 48094), (692, 40310), (695, 40136), (865, 32248), (1112, 25085), (1160, 24047), (1384, 20155), (1390, 20068), (1730, 16124), (2780, 10034), (3460, 8062), (4031, 6920), (5017, 5560)]