81231612

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:712

約数の個数: 144

約数和(自身を含む): 253572480

約数和(自身を除く): 172340868

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 28, 33, 38, 42, 44, 49, 57, 66, 76, 77, 84, 98, 114, 132, 133, 147, 154, 196, 209, 228, 231, 266, 294, 308, 399, 418, 462, 532, 539, 588, 627, 661, 798, 836, 924, 931, 1078, 1254, 1322, 1463, 1596, 1617, 1862, 1983, 2156, 2508, 2644, 2793, 2926, 3234, 3724, 3966, 4389, 4627, 5586, 5852, 6468, 7271, 7932, 8778, 9254, 10241, 11172, 12559, 13881, 14542, 17556, 18508, 20482, 21813, 25118, 27762, 29084, 30723, 32389, 37677, 40964, 43626, 50236, 50897, 55524, 61446, 64778, 75354, 87252, 87913, 97167, 101794, 122892, 129556, 138149, 150708, 152691, 175826, 194334, 203588, 263739, 276298, 305382, 351652, 356279, 388668, 414447, 527478, 552596, 610764, 615391, 712558, 828894, 967043, 1054956, 1068837, 1230782, 1425116, 1657788, 1846173, 1934086, 2137674, 2461564, 2901129, 3692346, 3868172, 4275348, 5802258, 6769301, 7384692, 11604516, 13538602, 20307903, 27077204, 40615806, 81231612]

約数ペア:

[(1, 81231612), (2, 40615806), (3, 27077204), (4, 20307903), (6, 13538602), (7, 11604516), (11, 7384692), (12, 6769301), (14, 5802258), (19, 4275348), (21, 3868172), (22, 3692346), (28, 2901129), (33, 2461564), (38, 2137674), (42, 1934086), (44, 1846173), (49, 1657788), (57, 1425116), (66, 1230782), (76, 1068837), (77, 1054956), (84, 967043), (98, 828894), (114, 712558), (132, 615391), (133, 610764), (147, 552596), (154, 527478), (196, 414447), (209, 388668), (228, 356279), (231, 351652), (266, 305382), (294, 276298), (308, 263739), (399, 203588), (418, 194334), (462, 175826), (532, 152691), (539, 150708), (588, 138149), (627, 129556), (661, 122892), (798, 101794), (836, 97167), (924, 87913), (931, 87252), (1078, 75354), (1254, 64778), (1322, 61446), (1463, 55524), (1596, 50897), (1617, 50236), (1862, 43626), (1983, 40964), (2156, 37677), (2508, 32389), (2644, 30723), (2793, 29084), (2926, 27762), (3234, 25118), (3724, 21813), (3966, 20482), (4389, 18508), (4627, 17556), (5586, 14542), (5852, 13881), (6468, 12559), (7271, 11172), (7932, 10241), (8778, 9254)]