28181520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{4349}}^1$

素因数の和:4374

約数の個数: 100

約数和(自身を含む): 97901100

約数和(自身を除く): 69719580

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 4349, 6480, 8698, 13047, 17396, 21745, 26094, 34792, 39141, 43490, 52188, 65235, 69584, 78282, 86980, 104376, 117423, 130470, 156564, 173960, 195705, 208752, 234846, 260940, 313128, 347920, 352269, 391410, 469692, 521880, 587115, 626256, 704538, 782820, 939384, 1043760, 1174230, 1409076, 1565640, 1761345, 1878768, 2348460, 2818152, 3131280, 3522690, 4696920, 5636304, 7045380, 9393840, 14090760, 28181520]

約数ペア:

[(1, 28181520), (2, 14090760), (3, 9393840), (4, 7045380), (5, 5636304), (6, 4696920), (8, 3522690), (9, 3131280), (10, 2818152), (12, 2348460), (15, 1878768), (16, 1761345), (18, 1565640), (20, 1409076), (24, 1174230), (27, 1043760), (30, 939384), (36, 782820), (40, 704538), (45, 626256), (48, 587115), (54, 521880), (60, 469692), (72, 391410), (80, 352269), (81, 347920), (90, 313128), (108, 260940), (120, 234846), (135, 208752), (144, 195705), (162, 173960), (180, 156564), (216, 130470), (240, 117423), (270, 104376), (324, 86980), (360, 78282), (405, 69584), (432, 65235), (540, 52188), (648, 43490), (720, 39141), (810, 34792), (1080, 26094), (1296, 21745), (1620, 17396), (2160, 13047), (3240, 8698), (4349, 6480)]