639230642

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{10667}}^1$

素因数の和:10790

約数の個数: 24

約数和(自身を含む): 1024256016

約数和(自身を除く): 385025374

約数列:

[1, 2, 19, 38, 83, 166, 361, 722, 1577, 3154, 10667, 21334, 29963, 59926, 202673, 405346, 885361, 1770722, 3850787, 7701574, 16821859, 33643718, 319615321, 639230642]

約数ペア:

[(1, 639230642), (2, 319615321), (19, 33643718), (38, 16821859), (83, 7701574), (166, 3850787), (361, 1770722), (722, 885361), (1577, 405346), (3154, 202673), (10667, 59926), (21334, 29963)]