81193615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 107075520

約数和(自身を除く): 25881905

約数列:

[1, 5, 17, 53, 67, 85, 265, 269, 335, 901, 1139, 1345, 3551, 4505, 4573, 5695, 14257, 17755, 18023, 22865, 60367, 71285, 90115, 242369, 301835, 306391, 955219, 1211845, 1531955, 4776095, 16238723, 81193615]

約数ペア:

[(1, 81193615), (5, 16238723), (17, 4776095), (53, 1531955), (67, 1211845), (85, 955219), (265, 306391), (269, 301835), (335, 242369), (901, 90115), (1139, 71285), (1345, 60367), (3551, 22865), (4505, 18023), (4573, 17755), (5695, 14257)]