21664900180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2009731}}^1$

素因数の和:2009765

約数の個数: 72

約数和(自身を含む): 57735580896

約数和(自身を除く): 36070680716

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 2009731, 4019462, 8038924, 10048655, 14068117, 20097310, 22107041, 28136234, 40194620, 44214082, 56272468, 70340585, 88428164, 98476819, 110535205, 140681170, 154749287, 196953638, 221070410, 281362340, 309498574, 393907276, 442140820, 492384095, 618997148, 773746435, 984768190, 1083245009, 1547492870, 1969536380, 2166490018, 3094985740, 4332980036, 5416225045, 10832450090, 21664900180]

約数ペア:

[(1, 21664900180), (2, 10832450090), (4, 5416225045), (5, 4332980036), (7, 3094985740), (10, 2166490018), (11, 1969536380), (14, 1547492870), (20, 1083245009), (22, 984768190), (28, 773746435), (35, 618997148), (44, 492384095), (49, 442140820), (55, 393907276), (70, 309498574), (77, 281362340), (98, 221070410), (110, 196953638), (140, 154749287), (154, 140681170), (196, 110535205), (220, 98476819), (245, 88428164), (308, 70340585), (385, 56272468), (490, 44214082), (539, 40194620), (770, 28136234), (980, 22107041), (1078, 20097310), (1540, 14068117), (2156, 10048655), (2695, 8038924), (5390, 4019462), (10780, 2009731)]