81171792

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:489

約数の個数: 120

約数和(自身を含む): 247255008

約数和(自身を除く): 166083216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 131, 144, 156, 208, 234, 262, 312, 331, 393, 468, 524, 624, 662, 786, 936, 993, 1048, 1179, 1324, 1572, 1703, 1872, 1986, 2096, 2358, 2648, 2979, 3144, 3406, 3972, 4303, 4716, 5109, 5296, 5958, 6288, 6812, 7944, 8606, 9432, 10218, 11916, 12909, 13624, 15327, 15888, 17212, 18864, 20436, 23832, 25818, 27248, 30654, 34424, 38727, 40872, 43361, 47664, 51636, 61308, 68848, 77454, 81744, 86722, 103272, 122616, 130083, 154908, 173444, 206544, 245232, 260166, 309816, 346888, 390249, 520332, 563693, 619632, 693776, 780498, 1040664, 1127386, 1560996, 1691079, 2081328, 2254772, 3121992, 3382158, 4509544, 5073237, 6243984, 6764316, 9019088, 10146474, 13528632, 20292948, 27057264, 40585896, 81171792]

約数ペア:

[(1, 81171792), (2, 40585896), (3, 27057264), (4, 20292948), (6, 13528632), (8, 10146474), (9, 9019088), (12, 6764316), (13, 6243984), (16, 5073237), (18, 4509544), (24, 3382158), (26, 3121992), (36, 2254772), (39, 2081328), (48, 1691079), (52, 1560996), (72, 1127386), (78, 1040664), (104, 780498), (117, 693776), (131, 619632), (144, 563693), (156, 520332), (208, 390249), (234, 346888), (262, 309816), (312, 260166), (331, 245232), (393, 206544), (468, 173444), (524, 154908), (624, 130083), (662, 122616), (786, 103272), (936, 86722), (993, 81744), (1048, 77454), (1179, 68848), (1324, 61308), (1572, 51636), (1703, 47664), (1872, 43361), (1986, 40872), (2096, 38727), (2358, 34424), (2648, 30654), (2979, 27248), (3144, 25818), (3406, 23832), (3972, 20436), (4303, 18864), (4716, 17212), (5109, 15888), (5296, 15327), (5958, 13624), (6288, 12909), (6812, 11916), (7944, 10218), (8606, 9432)]