128428668

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{251}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 332697456

約数和(自身を除く): 204268788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 233, 244, 251, 366, 466, 502, 549, 699, 732, 753, 932, 1004, 1098, 1398, 1506, 2097, 2196, 2259, 2796, 3012, 4194, 4518, 8388, 9036, 14213, 15311, 28426, 30622, 42639, 45933, 56852, 58483, 61244, 85278, 91866, 116966, 127917, 137799, 170556, 175449, 183732, 233932, 255834, 275598, 350898, 511668, 526347, 551196, 701796, 1052694, 2105388, 3567463, 7134926, 10702389, 14269852, 21404778, 32107167, 42809556, 64214334, 128428668]

約数ペア:

[(1, 128428668), (2, 64214334), (3, 42809556), (4, 32107167), (6, 21404778), (9, 14269852), (12, 10702389), (18, 7134926), (36, 3567463), (61, 2105388), (122, 1052694), (183, 701796), (233, 551196), (244, 526347), (251, 511668), (366, 350898), (466, 275598), (502, 255834), (549, 233932), (699, 183732), (732, 175449), (753, 170556), (932, 137799), (1004, 127917), (1098, 116966), (1398, 91866), (1506, 85278), (2097, 61244), (2196, 58483), (2259, 56852), (2796, 45933), (3012, 42639), (4194, 30622), (4518, 28426), (8388, 15311), (9036, 14213)]