57728140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 125483904

約数和(自身を除く): 67755764

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 181, 185, 362, 370, 431, 724, 740, 862, 905, 1724, 1810, 2155, 3620, 4310, 6697, 8620, 13394, 15947, 26788, 31894, 33485, 63788, 66970, 78011, 79735, 133940, 156022, 159470, 312044, 318940, 390055, 780110, 1560220, 2886407, 5772814, 11545628, 14432035, 28864070, 57728140]

約数ペア:

[(1, 57728140), (2, 28864070), (4, 14432035), (5, 11545628), (10, 5772814), (20, 2886407), (37, 1560220), (74, 780110), (148, 390055), (181, 318940), (185, 312044), (362, 159470), (370, 156022), (431, 133940), (724, 79735), (740, 78011), (862, 66970), (905, 63788), (1724, 33485), (1810, 31894), (2155, 26788), (3620, 15947), (4310, 13394), (6697, 8620)]