278128350145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{25411}}^1\times {\mathrm{128767}}^1$

素因数の和:154200

約数の個数: 16

約数和(自身を含む): 353403260928

約数和(自身を除く): 75274910783

約数列:

[1, 5, 17, 85, 25411, 127055, 128767, 431987, 643835, 2159935, 2189039, 10945195, 3272098237, 16360491185, 55625670029, 278128350145]

約数ペア:

[(1, 278128350145), (5, 55625670029), (17, 16360491185), (85, 3272098237), (25411, 10945195), (127055, 2189039), (128767, 2159935), (431987, 643835)]