20462728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 46609920

約数和(自身を除く): 26147192

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 572, 577, 682, 806, 1144, 1154, 1364, 1612, 2308, 2728, 3224, 4433, 4616, 6347, 7501, 8866, 12694, 15002, 17732, 17887, 25388, 30004, 35464, 35774, 50776, 60008, 71548, 82511, 143096, 165022, 196757, 232531, 330044, 393514, 465062, 660088, 787028, 930124, 1574056, 1860248, 2557841, 5115682, 10231364, 20462728]

約数ペア:

[(1, 20462728), (2, 10231364), (4, 5115682), (8, 2557841), (11, 1860248), (13, 1574056), (22, 930124), (26, 787028), (31, 660088), (44, 465062), (52, 393514), (62, 330044), (88, 232531), (104, 196757), (124, 165022), (143, 143096), (248, 82511), (286, 71548), (341, 60008), (403, 50776), (572, 35774), (577, 35464), (682, 30004), (806, 25388), (1144, 17887), (1154, 17732), (1364, 15002), (1612, 12694), (2308, 8866), (2728, 7501), (3224, 6347), (4433, 4616)]