20769320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3631}}^1$

素因数の和:3666

約数の個数: 64

約数和(自身を含む): 54915840

約数和(自身を除く): 34146520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3631, 5720, 7262, 14524, 18155, 29048, 36310, 39941, 47203, 72620, 79882, 94406, 145240, 159764, 188812, 199705, 236015, 319528, 377624, 399410, 472030, 519233, 798820, 944060, 1038466, 1597640, 1888120, 2076932, 2596165, 4153864, 5192330, 10384660, 20769320]

約数ペア:

[(1, 20769320), (2, 10384660), (4, 5192330), (5, 4153864), (8, 2596165), (10, 2076932), (11, 1888120), (13, 1597640), (20, 1038466), (22, 944060), (26, 798820), (40, 519233), (44, 472030), (52, 399410), (55, 377624), (65, 319528), (88, 236015), (104, 199705), (110, 188812), (130, 159764), (143, 145240), (220, 94406), (260, 79882), (286, 72620), (440, 47203), (520, 39941), (572, 36310), (715, 29048), (1144, 18155), (1430, 14524), (2860, 7262), (3631, 5720)]