81291008

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{18679}}^1$

素因数の和:18712

約数の個数: 36

約数和(自身を含む): 171818640

約数和(自身を除く): 90527632

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 18679, 37358, 74716, 149432, 298864, 317543, 597728, 635086, 1195456, 1270172, 2390912, 2540344, 4781824, 5080688, 10161376, 20322752, 40645504, 81291008]

約数ペア:

[(1, 81291008), (2, 40645504), (4, 20322752), (8, 10161376), (16, 5080688), (17, 4781824), (32, 2540344), (34, 2390912), (64, 1270172), (68, 1195456), (128, 635086), (136, 597728), (256, 317543), (272, 298864), (544, 149432), (1088, 74716), (2176, 37358), (4352, 18679)]