20178281872

素因数分解:

$2^4\times 7^1\times {\mathrm{229}}^1\times {\mathrm{786739}}^1$

素因数の和:786983

約数の個数: 40

約数和(自身を含む): 44875649600

約数和(自身を除く): 24697367728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 229, 458, 916, 1603, 1832, 3206, 3664, 6412, 12824, 25648, 786739, 1573478, 3146956, 5507173, 6293912, 11014346, 12587824, 22028692, 44057384, 88114768, 180163231, 360326462, 720652924, 1261142617, 1441305848, 2522285234, 2882611696, 5044570468, 10089140936, 20178281872]

約数ペア:

[(1, 20178281872), (2, 10089140936), (4, 5044570468), (7, 2882611696), (8, 2522285234), (14, 1441305848), (16, 1261142617), (28, 720652924), (56, 360326462), (112, 180163231), (229, 88114768), (458, 44057384), (916, 22028692), (1603, 12587824), (1832, 11014346), (3206, 6293912), (3664, 5507173), (6412, 3146956), (12824, 1573478), (25648, 786739)]