81876190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{20117}}^1$

素因数の和:20172

約数の個数: 32

約数和(自身を含む): 165128544

約数和(自身を除く): 83252354

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 20117, 40234, 100585, 201170, 221287, 442574, 744329, 1106435, 1488658, 2212870, 3721645, 7443290, 8187619, 16375238, 40938095, 81876190]

約数ペア:

[(1, 81876190), (2, 40938095), (5, 16375238), (10, 8187619), (11, 7443290), (22, 3721645), (37, 2212870), (55, 1488658), (74, 1106435), (110, 744329), (185, 442574), (370, 221287), (407, 201170), (814, 100585), (2035, 40234), (4070, 20117)]