201990512945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{135110711}}^1$

素因数の和:135110752

約数の個数: 16

約数和(自身を含む): 272383195392

約数和(自身を除く): 70392682447

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 135110711, 675553555, 1756439243, 3107546353, 8782196215, 15537731765, 40398102589, 201990512945]

約数ペア:

[(1, 201990512945), (5, 40398102589), (13, 15537731765), (23, 8782196215), (65, 3107546353), (115, 1756439243), (299, 675553555), (1495, 135110711)]