81940628

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 191600640

約数和(自身を除く): 109660012

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 43, 44, 46, 77, 86, 92, 154, 161, 172, 253, 269, 301, 308, 322, 473, 506, 538, 602, 644, 946, 989, 1012, 1076, 1204, 1771, 1883, 1892, 1978, 2959, 3311, 3542, 3766, 3956, 5918, 6187, 6622, 6923, 7084, 7532, 10879, 11567, 11836, 12374, 13244, 13846, 20713, 21758, 23134, 24748, 27692, 41426, 43309, 43516, 46268, 68057, 76153, 80969, 82852, 86618, 127237, 136114, 152306, 161938, 173236, 254474, 266041, 272228, 304612, 323876, 476399, 508948, 532082, 890659, 952798, 1064164, 1781318, 1862287, 1905596, 2926451, 3562636, 3724574, 5852902, 7449148, 11705804, 20485157, 40970314, 81940628]

約数ペア:

[(1, 81940628), (2, 40970314), (4, 20485157), (7, 11705804), (11, 7449148), (14, 5852902), (22, 3724574), (23, 3562636), (28, 2926451), (43, 1905596), (44, 1862287), (46, 1781318), (77, 1064164), (86, 952798), (92, 890659), (154, 532082), (161, 508948), (172, 476399), (253, 323876), (269, 304612), (301, 272228), (308, 266041), (322, 254474), (473, 173236), (506, 161938), (538, 152306), (602, 136114), (644, 127237), (946, 86618), (989, 82852), (1012, 80969), (1076, 76153), (1204, 68057), (1771, 46268), (1883, 43516), (1892, 43309), (1978, 41426), (2959, 27692), (3311, 24748), (3542, 23134), (3766, 21758), (3956, 20713), (5918, 13846), (6187, 13244), (6622, 12374), (6923, 11836), (7084, 11567), (7532, 10879)]