1260820

素因数分解:

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

素因数の和:552

約数の個数: 36

約数和(自身を含む): 2915892

約数和(自身を除く): 1655072

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 521, 605, 1042, 1210, 2084, 2420, 2605, 5210, 5731, 10420, 11462, 22924, 28655, 57310, 63041, 114620, 126082, 252164, 315205, 630410, 1260820]

約数ペア:

[(1, 1260820), (2, 630410), (4, 315205), (5, 252164), (10, 126082), (11, 114620), (20, 63041), (22, 57310), (44, 28655), (55, 22924), (110, 11462), (121, 10420), (220, 5731), (242, 5210), (484, 2605), (521, 2420), (605, 2084), (1042, 1210)]