156909515995

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1\times {\mathrm{198719}}^1$

素因数の和:200802

約数の個数: 16

約数和(自身を含む): 190771200000

約数和(自身を除く): 33861684005

約数列:

[1, 5, 79, 395, 1999, 9995, 157921, 198719, 789605, 993595, 15698801, 78494005, 397239281, 1986196405, 31381903199, 156909515995]

約数ペア:

[(1, 156909515995), (5, 31381903199), (79, 1986196405), (395, 397239281), (1999, 78494005), (9995, 15698801), (157921, 993595), (198719, 789605)]