128840881475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1\times {\mathrm{1733}}^1$

素因数の和:2600

約数の個数: 48

約数和(自身を含む): 169170288480

約数和(自身を除く): 40329407005

約数列:

[1, 5, 19, 25, 95, 281, 475, 557, 1405, 1733, 2785, 5339, 7025, 8665, 10583, 13925, 26695, 32927, 43325, 52915, 133475, 156517, 164635, 264575, 486973, 782585, 823175, 965281, 2434865, 2973823, 3912925, 4826405, 9252487, 12174325, 14869115, 18340339, 24132025, 46262435, 74345575, 91701695, 231312175, 271243961, 458508475, 1356219805, 5153635259, 6781099025, 25768176295, 128840881475]

約数ペア:

[(1, 128840881475), (5, 25768176295), (19, 6781099025), (25, 5153635259), (95, 1356219805), (281, 458508475), (475, 271243961), (557, 231312175), (1405, 91701695), (1733, 74345575), (2785, 46262435), (5339, 24132025), (7025, 18340339), (8665, 14869115), (10583, 12174325), (13925, 9252487), (26695, 4826405), (32927, 3912925), (43325, 2973823), (52915, 2434865), (133475, 965281), (156517, 823175), (164635, 782585), (264575, 486973)]