81189776

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{52313}}^1$

素因数の和:52418

約数の個数: 20

約数和(自身を含む): 158929932

約数和(自身を除く): 77740156

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 52313, 104626, 209252, 418504, 837008, 5074361, 10148722, 20297444, 40594888, 81189776]

約数ペア:

[(1, 81189776), (2, 40594888), (4, 20297444), (8, 10148722), (16, 5074361), (97, 837008), (194, 418504), (388, 209252), (776, 104626), (1552, 52313)]