28624280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3209}}^1$

素因数の和:3443

約数の個数: 32

約数和(自身を含む): 64713600

約数和(自身を除く): 36089320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 3209, 4460, 6418, 8920, 12836, 16045, 25672, 32090, 64180, 128360, 715607, 1431214, 2862428, 3578035, 5724856, 7156070, 14312140, 28624280]

約数ペア:

[(1, 28624280), (2, 14312140), (4, 7156070), (5, 5724856), (8, 3578035), (10, 2862428), (20, 1431214), (40, 715607), (223, 128360), (446, 64180), (892, 32090), (1115, 25672), (1784, 16045), (2230, 12836), (3209, 8920), (4460, 6418)]