18640933295

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1\times {\mathrm{86539}}^1$

素因数の和:87254

約数の個数: 16

約数和(自身を含む): 22738558080

約数和(自身を除く): 4097624785

約数列:

[1, 5, 67, 335, 643, 3215, 43081, 86539, 215405, 432695, 5798113, 28990565, 55644577, 278222885, 3728186659, 18640933295]

約数ペア:

[(1, 18640933295), (5, 3728186659), (67, 278222885), (335, 55644577), (643, 28990565), (3215, 5798113), (43081, 432695), (86539, 215405)]