81191728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{9629}}^1$

素因数の和:9685

約数の個数: 40

約数和(自身を含む): 171953280

約数和(自身を除く): 90761552

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 4216, 8432, 9629, 19258, 38516, 77032, 154064, 163693, 298499, 327386, 596998, 654772, 1193996, 1309544, 2387992, 2619088, 4775984, 5074483, 10148966, 20297932, 40595864, 81191728]

約数ペア:

[(1, 81191728), (2, 40595864), (4, 20297932), (8, 10148966), (16, 5074483), (17, 4775984), (31, 2619088), (34, 2387992), (62, 1309544), (68, 1193996), (124, 654772), (136, 596998), (248, 327386), (272, 298499), (496, 163693), (527, 154064), (1054, 77032), (2108, 38516), (4216, 19258), (8432, 9629)]