25427720

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4049}}^1$

素因数の和:4217

約数の個数: 32

約数和(自身を含む): 57591000

約数和(自身を除く): 32163280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4049, 6280, 8098, 16196, 20245, 32392, 40490, 80980, 161960, 635693, 1271386, 2542772, 3178465, 5085544, 6356930, 12713860, 25427720]

約数ペア:

[(1, 25427720), (2, 12713860), (4, 6356930), (5, 5085544), (8, 3178465), (10, 2542772), (20, 1271386), (40, 635693), (157, 161960), (314, 80980), (628, 40490), (785, 32392), (1256, 20245), (1570, 16196), (3140, 8098), (4049, 6280)]