81999072

素因数分解:

$2^5\times 3^2\times {\mathrm{101}}^1\times {\mathrm{2819}}^1$

素因数の和:2936

約数の個数: 72

約数和(自身を含む): 235577160

約数和(自身を除く): 153578088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 101, 144, 202, 288, 303, 404, 606, 808, 909, 1212, 1616, 1818, 2424, 2819, 3232, 3636, 4848, 5638, 7272, 8457, 9696, 11276, 14544, 16914, 22552, 25371, 29088, 33828, 45104, 50742, 67656, 90208, 101484, 135312, 202968, 270624, 284719, 405936, 569438, 811872, 854157, 1138876, 1708314, 2277752, 2562471, 3416628, 4555504, 5124942, 6833256, 9111008, 10249884, 13666512, 20499768, 27333024, 40999536, 81999072]

約数ペア:

[(1, 81999072), (2, 40999536), (3, 27333024), (4, 20499768), (6, 13666512), (8, 10249884), (9, 9111008), (12, 6833256), (16, 5124942), (18, 4555504), (24, 3416628), (32, 2562471), (36, 2277752), (48, 1708314), (72, 1138876), (96, 854157), (101, 811872), (144, 569438), (202, 405936), (288, 284719), (303, 270624), (404, 202968), (606, 135312), (808, 101484), (909, 90208), (1212, 67656), (1616, 50742), (1818, 45104), (2424, 33828), (2819, 29088), (3232, 25371), (3636, 22552), (4848, 16914), (5638, 14544), (7272, 11276), (8457, 9696)]