138889205

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{797}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 205922304

約数和(自身を除く): 67033099

約数列:

[1, 5, 7, 13, 35, 65, 91, 383, 455, 797, 1915, 2681, 3985, 4979, 5579, 10361, 13405, 24895, 27895, 34853, 51805, 72527, 174265, 305251, 362635, 1526255, 2136757, 3968263, 10683785, 19841315, 27777841, 138889205]

約数ペア:

[(1, 138889205), (5, 27777841), (7, 19841315), (13, 10683785), (35, 3968263), (65, 2136757), (91, 1526255), (383, 362635), (455, 305251), (797, 174265), (1915, 72527), (2681, 51805), (3985, 34853), (4979, 27895), (5579, 24895), (10361, 13405)]