28181840

素因数分解:

$2^4\times 5^1\times {\mathrm{352273}}^1$

素因数の和:352286

約数の個数: 20

約数和(自身を含む): 65522964

約数和(自身を除く): 37341124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352273, 704546, 1409092, 1761365, 2818184, 3522730, 5636368, 7045460, 14090920, 28181840]

約数ペア:

[(1, 28181840), (2, 14090920), (4, 7045460), (5, 5636368), (8, 3522730), (10, 2818184), (16, 1761365), (20, 1409092), (40, 704546), (80, 352273)]