720637021

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{23459}}^1$

素因数の和:23628

約数の個数: 16

約数和(自身を含む): 827668800

約数和(自身を除く): 107031779

約数列:

[1, 13, 17, 139, 221, 1807, 2363, 23459, 30719, 304967, 398803, 3260801, 5184439, 42390413, 55433617, 720637021]

約数ペア:

[(1, 720637021), (13, 55433617), (17, 42390413), (139, 5184439), (221, 3260801), (1807, 398803), (2363, 304967), (23459, 30719)]