128214285

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{919}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 209848320

約数和(自身を除く): 81634035

約数列:

[1, 3, 5, 15, 71, 131, 213, 355, 393, 655, 919, 1065, 1965, 2757, 4595, 9301, 13785, 27903, 46505, 65249, 120389, 139515, 195747, 326245, 361167, 601945, 978735, 1805835, 8547619, 25642857, 42738095, 128214285]

約数ペア:

[(1, 128214285), (3, 42738095), (5, 25642857), (15, 8547619), (71, 1805835), (131, 978735), (213, 601945), (355, 361167), (393, 326245), (655, 195747), (919, 139515), (1065, 120389), (1965, 65249), (2757, 46505), (4595, 27903), (9301, 13785)]