81363784

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{38671}}^1$

素因数の和:38940

約数の個数: 16

約数和(自身を含む): 153141120

約数和(自身を除く): 71777336

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 38671, 77342, 154684, 309368, 10170473, 20340946, 40681892, 81363784]

約数ペア:

[(1, 81363784), (2, 40681892), (4, 20340946), (8, 10170473), (263, 309368), (526, 154684), (1052, 77342), (2104, 38671)]