81541740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1303}}^1$

素因数の和:1471

約数の個数: 96

約数和(自身を含む): 262886400

約数和(自身を除く): 181344660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 149, 210, 298, 420, 447, 596, 745, 894, 1043, 1303, 1490, 1788, 2086, 2235, 2606, 2980, 3129, 3909, 4172, 4470, 5212, 5215, 6258, 6515, 7818, 8940, 9121, 10430, 12516, 13030, 15636, 15645, 18242, 19545, 20860, 26060, 27363, 31290, 36484, 39090, 45605, 54726, 62580, 78180, 91210, 109452, 136815, 182420, 194147, 273630, 388294, 547260, 582441, 776588, 970735, 1164882, 1359029, 1941470, 2329764, 2718058, 2912205, 3882940, 4077087, 5436116, 5824410, 6795145, 8154174, 11648820, 13590290, 16308348, 20385435, 27180580, 40770870, 81541740]

約数ペア:

[(1, 81541740), (2, 40770870), (3, 27180580), (4, 20385435), (5, 16308348), (6, 13590290), (7, 11648820), (10, 8154174), (12, 6795145), (14, 5824410), (15, 5436116), (20, 4077087), (21, 3882940), (28, 2912205), (30, 2718058), (35, 2329764), (42, 1941470), (60, 1359029), (70, 1164882), (84, 970735), (105, 776588), (140, 582441), (149, 547260), (210, 388294), (298, 273630), (420, 194147), (447, 182420), (596, 136815), (745, 109452), (894, 91210), (1043, 78180), (1303, 62580), (1490, 54726), (1788, 45605), (2086, 39090), (2235, 36484), (2606, 31290), (2980, 27363), (3129, 26060), (3909, 20860), (4172, 19545), (4470, 18242), (5212, 15645), (5215, 15636), (6258, 13030), (6515, 12516), (7818, 10430), (8940, 9121)]