28209420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156719}}^1$

素因数の和:156734

約数の個数: 36

約数和(自身を含む): 85569120

約数和(自身を除く): 57359700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156719, 313438, 470157, 626876, 783595, 940314, 1410471, 1567190, 1880628, 2350785, 2820942, 3134380, 4701570, 5641884, 7052355, 9403140, 14104710, 28209420]

約数ペア:

[(1, 28209420), (2, 14104710), (3, 9403140), (4, 7052355), (5, 5641884), (6, 4701570), (9, 3134380), (10, 2820942), (12, 2350785), (15, 1880628), (18, 1567190), (20, 1410471), (30, 940314), (36, 783595), (45, 626876), (60, 470157), (90, 313438), (180, 156719)]