81078648

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 160841352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 56, 79, 82, 84, 123, 149, 158, 164, 168, 237, 246, 287, 298, 316, 328, 447, 474, 492, 553, 574, 596, 632, 861, 894, 948, 984, 1043, 1106, 1148, 1192, 1659, 1722, 1788, 1896, 2086, 2212, 2296, 3129, 3239, 3318, 3444, 3576, 4172, 4424, 6109, 6258, 6478, 6636, 6888, 8344, 9717, 11771, 12218, 12516, 12956, 13272, 18327, 19434, 22673, 23542, 24436, 25032, 25912, 35313, 36654, 38868, 42763, 45346, 47084, 48872, 68019, 70626, 73308, 77736, 82397, 85526, 90692, 94168, 128289, 136038, 141252, 146616, 164794, 171052, 181384, 247191, 256578, 272076, 282504, 329588, 342104, 482611, 494382, 513156, 544152, 659176, 965222, 988764, 1026312, 1447833, 1930444, 1977528, 2895666, 3378277, 3860888, 5791332, 6756554, 10134831, 11582664, 13513108, 20269662, 27026216, 40539324, 81078648]

約数ペア:

[(1, 81078648), (2, 40539324), (3, 27026216), (4, 20269662), (6, 13513108), (7, 11582664), (8, 10134831), (12, 6756554), (14, 5791332), (21, 3860888), (24, 3378277), (28, 2895666), (41, 1977528), (42, 1930444), (56, 1447833), (79, 1026312), (82, 988764), (84, 965222), (123, 659176), (149, 544152), (158, 513156), (164, 494382), (168, 482611), (237, 342104), (246, 329588), (287, 282504), (298, 272076), (316, 256578), (328, 247191), (447, 181384), (474, 171052), (492, 164794), (553, 146616), (574, 141252), (596, 136038), (632, 128289), (861, 94168), (894, 90692), (948, 85526), (984, 82397), (1043, 77736), (1106, 73308), (1148, 70626), (1192, 68019), (1659, 48872), (1722, 47084), (1788, 45346), (1896, 42763), (2086, 38868), (2212, 36654), (2296, 35313), (3129, 25912), (3239, 25032), (3318, 24436), (3444, 23542), (3576, 22673), (4172, 19434), (4424, 18327), (6109, 13272), (6258, 12956), (6478, 12516), (6636, 12218), (6888, 11771), (8344, 9717)]