81937550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{23081}}^1$

素因数の和:23164

約数の個数: 24

約数和(自身を含む): 154557072

約数和(自身を除く): 72619522

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 23081, 46162, 115405, 230810, 577025, 1154050, 1638751, 3277502, 8193755, 16387510, 40968775, 81937550]

約数ペア:

[(1, 81937550), (2, 40968775), (5, 16387510), (10, 8193755), (25, 3277502), (50, 1638751), (71, 1154050), (142, 577025), (355, 230810), (710, 115405), (1775, 46162), (3550, 23081)]