128205865

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 156672000

約数和(自身を除く): 28466135

約数列:

[1, 5, 101, 127, 505, 635, 1999, 9995, 12827, 64135, 201899, 253873, 1009495, 1269365, 25641173, 128205865]

約数ペア:

[(1, 128205865), (5, 25641173), (101, 1269365), (127, 1009495), (505, 253873), (635, 201899), (1999, 64135), (9995, 12827)]