7878728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 17781120

約数和(自身を除く): 9902392

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 71, 88, 97, 104, 142, 143, 194, 284, 286, 388, 568, 572, 776, 781, 923, 1067, 1144, 1261, 1562, 1846, 2134, 2522, 3124, 3692, 4268, 5044, 6248, 6887, 7384, 8536, 10088, 10153, 13774, 13871, 20306, 27548, 27742, 40612, 55096, 55484, 75757, 81224, 89531, 110968, 151514, 179062, 303028, 358124, 606056, 716248, 984841, 1969682, 3939364, 7878728]

約数ペア:

[(1, 7878728), (2, 3939364), (4, 1969682), (8, 984841), (11, 716248), (13, 606056), (22, 358124), (26, 303028), (44, 179062), (52, 151514), (71, 110968), (88, 89531), (97, 81224), (104, 75757), (142, 55484), (143, 55096), (194, 40612), (284, 27742), (286, 27548), (388, 20306), (568, 13871), (572, 13774), (776, 10153), (781, 10088), (923, 8536), (1067, 7384), (1144, 6887), (1261, 6248), (1562, 5044), (1846, 4268), (2134, 3692), (2522, 3124)]