28045840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7459}}^1$

素因数の和:7519

約数の個数: 40

約数和(自身を含む): 66602880

約数和(自身を除く): 38557040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 7459, 14918, 29836, 37295, 59672, 74590, 119344, 149180, 298360, 350573, 596720, 701146, 1402292, 1752865, 2804584, 3505730, 5609168, 7011460, 14022920, 28045840]

約数ペア:

[(1, 28045840), (2, 14022920), (4, 7011460), (5, 5609168), (8, 3505730), (10, 2804584), (16, 1752865), (20, 1402292), (40, 701146), (47, 596720), (80, 350573), (94, 298360), (188, 149180), (235, 119344), (376, 74590), (470, 59672), (752, 37295), (940, 29836), (1880, 14918), (3760, 7459)]