28305440

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9311}}^1$

素因数の和:9345

約数の個数: 48

約数和(自身を含む): 70398720

約数和(自身を除く): 42093280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 9311, 18622, 37244, 46555, 74488, 93110, 148976, 176909, 186220, 297952, 353818, 372440, 707636, 744880, 884545, 1415272, 1489760, 1769090, 2830544, 3538180, 5661088, 7076360, 14152720, 28305440]

約数ペア:

[(1, 28305440), (2, 14152720), (4, 7076360), (5, 5661088), (8, 3538180), (10, 2830544), (16, 1769090), (19, 1489760), (20, 1415272), (32, 884545), (38, 744880), (40, 707636), (76, 372440), (80, 353818), (95, 297952), (152, 186220), (160, 176909), (190, 148976), (304, 93110), (380, 74488), (608, 46555), (760, 37244), (1520, 18622), (3040, 9311)]