2808190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 6426864

約数和(自身を除く): 3618674

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 521, 539, 770, 1042, 1078, 2605, 2695, 3647, 5210, 5390, 5731, 7294, 11462, 18235, 25529, 28655, 36470, 40117, 51058, 57310, 80234, 127645, 200585, 255290, 280819, 401170, 561638, 1404095, 2808190]

約数ペア:

[(1, 2808190), (2, 1404095), (5, 561638), (7, 401170), (10, 280819), (11, 255290), (14, 200585), (22, 127645), (35, 80234), (49, 57310), (55, 51058), (70, 40117), (77, 36470), (98, 28655), (110, 25529), (154, 18235), (245, 11462), (385, 7294), (490, 5731), (521, 5390), (539, 5210), (770, 3647), (1042, 2695), (1078, 2605)]