31220980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223007}}^1$

素因数の和:223023

約数の個数: 24

約数和(自身を含む): 74930688

約数和(自身を除く): 43709708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223007, 446014, 892028, 1115035, 1561049, 2230070, 3122098, 4460140, 6244196, 7805245, 15610490, 31220980]

約数ペア:

[(1, 31220980), (2, 15610490), (4, 7805245), (5, 6244196), (7, 4460140), (10, 3122098), (14, 2230070), (20, 1561049), (28, 1115035), (35, 892028), (70, 446014), (140, 223007)]