20904630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{509}}^1$

素因数の和:593

約数の個数: 48

約数和(自身を含む): 51665040

約数和(自身を除く): 30760410

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 509, 555, 1018, 1110, 1369, 1527, 2545, 2738, 3054, 4107, 5090, 6845, 7635, 8214, 13690, 15270, 18833, 20535, 37666, 41070, 56499, 94165, 112998, 188330, 282495, 564990, 696821, 1393642, 2090463, 3484105, 4180926, 6968210, 10452315, 20904630]

約数ペア:

[(1, 20904630), (2, 10452315), (3, 6968210), (5, 4180926), (6, 3484105), (10, 2090463), (15, 1393642), (30, 696821), (37, 564990), (74, 282495), (111, 188330), (185, 112998), (222, 94165), (370, 56499), (509, 41070), (555, 37666), (1018, 20535), (1110, 18833), (1369, 15270), (1527, 13690), (2545, 8214), (2738, 7635), (3054, 6845), (4107, 5090)]