30890090

素因数分解:

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

素因数の和:564

約数の個数: 72

約数和(自身を含む): 71231076

約数和(自身を除く): 40340986

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 385, 490, 521, 539, 605, 770, 847, 1042, 1078, 1210, 1694, 2605, 2695, 3647, 4235, 5210, 5390, 5731, 5929, 7294, 8470, 11462, 11858, 18235, 25529, 28655, 29645, 36470, 40117, 51058, 57310, 59290, 63041, 80234, 126082, 127645, 200585, 255290, 280819, 315205, 401170, 441287, 561638, 630410, 882574, 1404095, 2206435, 2808190, 3089009, 4412870, 6178018, 15445045, 30890090]

約数ペア:

[(1, 30890090), (2, 15445045), (5, 6178018), (7, 4412870), (10, 3089009), (11, 2808190), (14, 2206435), (22, 1404095), (35, 882574), (49, 630410), (55, 561638), (70, 441287), (77, 401170), (98, 315205), (110, 280819), (121, 255290), (154, 200585), (242, 127645), (245, 126082), (385, 80234), (490, 63041), (521, 59290), (539, 57310), (605, 51058), (770, 40117), (847, 36470), (1042, 29645), (1078, 28655), (1210, 25529), (1694, 18235), (2605, 11858), (2695, 11462), (3647, 8470), (4235, 7294), (5210, 5929), (5390, 5731)]