71931405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{52697}}^1$

素因数の和:52725

約数の個数: 32

約数和(自身を含む): 141652224

約数和(自身を除く): 69720819

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 52697, 158091, 263485, 368879, 685061, 790455, 1106637, 1844395, 2055183, 3425305, 4795427, 5533185, 10275915, 14386281, 23977135, 71931405]

約数ペア:

[(1, 71931405), (3, 23977135), (5, 14386281), (7, 10275915), (13, 5533185), (15, 4795427), (21, 3425305), (35, 2055183), (39, 1844395), (65, 1106637), (91, 790455), (105, 685061), (195, 368879), (273, 263485), (455, 158091), (1365, 52697)]