20191168868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{2081}}^1$

素因数の和:2605

約数の個数: 72

約数和(自身を含む): 39600239616

約数和(自身を除く): 19409070748

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 463, 676, 806, 926, 1612, 1852, 2081, 4162, 5239, 6019, 8324, 10478, 12038, 14353, 20956, 24076, 27053, 28706, 54106, 57412, 64511, 78247, 108212, 129022, 156494, 186589, 258044, 312988, 351689, 373178, 703378, 746356, 838643, 963503, 1406756, 1677286, 1927006, 2425657, 3354572, 3854012, 4851314, 9702628, 10902359, 12525539, 21804718, 25051078, 29868593, 43609436, 50102156, 59737186, 119474372, 162832007, 325664014, 388291709, 651328028, 776583418, 1553166836, 5047792217, 10095584434, 20191168868]

約数ペア:

[(1, 20191168868), (2, 10095584434), (4, 5047792217), (13, 1553166836), (26, 776583418), (31, 651328028), (52, 388291709), (62, 325664014), (124, 162832007), (169, 119474372), (338, 59737186), (403, 50102156), (463, 43609436), (676, 29868593), (806, 25051078), (926, 21804718), (1612, 12525539), (1852, 10902359), (2081, 9702628), (4162, 4851314), (5239, 3854012), (6019, 3354572), (8324, 2425657), (10478, 1927006), (12038, 1677286), (14353, 1406756), (20956, 963503), (24076, 838643), (27053, 746356), (28706, 703378), (54106, 373178), (57412, 351689), (64511, 312988), (78247, 258044), (108212, 186589), (129022, 156494)]