25560260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 58931712

約数和(自身を除く): 33371452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 521, 892, 1042, 1115, 2084, 2230, 2453, 2605, 4460, 4906, 5210, 5731, 9812, 10420, 11462, 12265, 22924, 24530, 28655, 49060, 57310, 114620, 116183, 232366, 464732, 580915, 1161830, 1278013, 2323660, 2556026, 5112052, 6390065, 12780130, 25560260]

約数ペア:

[(1, 25560260), (2, 12780130), (4, 6390065), (5, 5112052), (10, 2556026), (11, 2323660), (20, 1278013), (22, 1161830), (44, 580915), (55, 464732), (110, 232366), (220, 116183), (223, 114620), (446, 57310), (521, 49060), (892, 28655), (1042, 24530), (1115, 22924), (2084, 12265), (2230, 11462), (2453, 10420), (2605, 9812), (4460, 5731), (4906, 5210)]