1287002975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{31333}}^1$

素因数の和:31427

約数の個数: 24

約数和(自身を含む): 1678499712

約数和(自身を除く): 391496737

約数列:

[1, 5, 25, 31, 53, 155, 265, 775, 1325, 1643, 8215, 31333, 41075, 156665, 783325, 971323, 1660649, 4856615, 8303245, 24283075, 41516225, 51480119, 257400595, 1287002975]

約数ペア:

[(1, 1287002975), (5, 257400595), (25, 51480119), (31, 41516225), (53, 24283075), (155, 8303245), (265, 4856615), (775, 1660649), (1325, 971323), (1643, 783325), (8215, 156665), (31333, 41075)]