81101328

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21943}}^1$

素因数の和:21972

約数の個数: 80

約数和(自身を含む): 261221376

約数和(自身を除く): 180120048

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 132, 154, 168, 176, 231, 264, 308, 336, 462, 528, 616, 924, 1232, 1848, 3696, 21943, 43886, 65829, 87772, 131658, 153601, 175544, 241373, 263316, 307202, 351088, 460803, 482746, 526632, 614404, 724119, 921606, 965492, 1053264, 1228808, 1448238, 1689611, 1843212, 1930984, 2457616, 2896476, 3379222, 3686424, 3861968, 5068833, 5792952, 6758444, 7372848, 10137666, 11585904, 13516888, 20275332, 27033776, 40550664, 81101328]

約数ペア:

[(1, 81101328), (2, 40550664), (3, 27033776), (4, 20275332), (6, 13516888), (7, 11585904), (8, 10137666), (11, 7372848), (12, 6758444), (14, 5792952), (16, 5068833), (21, 3861968), (22, 3686424), (24, 3379222), (28, 2896476), (33, 2457616), (42, 1930984), (44, 1843212), (48, 1689611), (56, 1448238), (66, 1228808), (77, 1053264), (84, 965492), (88, 921606), (112, 724119), (132, 614404), (154, 526632), (168, 482746), (176, 460803), (231, 351088), (264, 307202), (308, 263316), (336, 241373), (462, 175544), (528, 153601), (616, 131658), (924, 87772), (1232, 65829), (1848, 43886), (3696, 21943)]