388421838

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1039}}^1$

素因数の和:1123

約数の個数: 128

約数和(自身を含む): 1054310400

約数和(自身を除く): 665888562

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 43, 46, 54, 63, 69, 86, 126, 129, 138, 161, 189, 207, 258, 301, 322, 378, 387, 414, 483, 602, 621, 774, 903, 966, 989, 1039, 1161, 1242, 1449, 1806, 1978, 2078, 2322, 2709, 2898, 2967, 3117, 4347, 5418, 5934, 6234, 6923, 7273, 8127, 8694, 8901, 9351, 13846, 14546, 16254, 17802, 18702, 20769, 21819, 23897, 26703, 28053, 41538, 43638, 44677, 47794, 53406, 56106, 62307, 65457, 71691, 89354, 124614, 130914, 134031, 143382, 167279, 186921, 196371, 215073, 268062, 312739, 334558, 373842, 392742, 402093, 430146, 501837, 625478, 645219, 804186, 938217, 1003674, 1027571, 1206279, 1290438, 1505511, 1876434, 2055142, 2412558, 2814651, 3011022, 3082713, 4516533, 5629302, 6165426, 7192997, 8443953, 9033066, 9248139, 14385994, 16887906, 18496278, 21578991, 27744417, 43157982, 55488834, 64736973, 129473946, 194210919, 388421838]

約数ペア:

[(1, 388421838), (2, 194210919), (3, 129473946), (6, 64736973), (7, 55488834), (9, 43157982), (14, 27744417), (18, 21578991), (21, 18496278), (23, 16887906), (27, 14385994), (42, 9248139), (43, 9033066), (46, 8443953), (54, 7192997), (63, 6165426), (69, 5629302), (86, 4516533), (126, 3082713), (129, 3011022), (138, 2814651), (161, 2412558), (189, 2055142), (207, 1876434), (258, 1505511), (301, 1290438), (322, 1206279), (378, 1027571), (387, 1003674), (414, 938217), (483, 804186), (602, 645219), (621, 625478), (774, 501837), (903, 430146), (966, 402093), (989, 392742), (1039, 373842), (1161, 334558), (1242, 312739), (1449, 268062), (1806, 215073), (1978, 196371), (2078, 186921), (2322, 167279), (2709, 143382), (2898, 134031), (2967, 130914), (3117, 124614), (4347, 89354), (5418, 71691), (5934, 65457), (6234, 62307), (6923, 56106), (7273, 53406), (8127, 47794), (8694, 44677), (8901, 43638), (9351, 41538), (13846, 28053), (14546, 26703), (16254, 23897), (17802, 21819), (18702, 20769)]