2521640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{521}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 6248340

約数和(自身を除く): 3726700

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 521, 605, 968, 1042, 1210, 2084, 2420, 2605, 4168, 4840, 5210, 5731, 10420, 11462, 20840, 22924, 28655, 45848, 57310, 63041, 114620, 126082, 229240, 252164, 315205, 504328, 630410, 1260820, 2521640]

約数ペア:

[(1, 2521640), (2, 1260820), (4, 630410), (5, 504328), (8, 315205), (10, 252164), (11, 229240), (20, 126082), (22, 114620), (40, 63041), (44, 57310), (55, 45848), (88, 28655), (110, 22924), (121, 20840), (220, 11462), (242, 10420), (440, 5731), (484, 5210), (521, 4840), (605, 4168), (968, 2605), (1042, 2420), (1210, 2084)]