28203795

素因数分解:

$3^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 23163885

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 139, 167, 243, 405, 417, 501, 695, 835, 1215, 1251, 1503, 2085, 2505, 3753, 4509, 6255, 7515, 11259, 13527, 18765, 22545, 23213, 33777, 40581, 56295, 67635, 69639, 116065, 168885, 202905, 208917, 348195, 626751, 1044585, 1880253, 3133755, 5640759, 9401265, 28203795]

約数ペア:

[(1, 28203795), (3, 9401265), (5, 5640759), (9, 3133755), (15, 1880253), (27, 1044585), (45, 626751), (81, 348195), (135, 208917), (139, 202905), (167, 168885), (243, 116065), (405, 69639), (417, 67635), (501, 56295), (695, 40581), (835, 33777), (1215, 23213), (1251, 22545), (1503, 18765), (2085, 13527), (2505, 11259), (3753, 7515), (4509, 6255)]