1279884040

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{115513}}^1$

素因数の和:115801

約数の個数: 32

約数和(自身を含む): 2890160280

約数和(自身を除く): 1610276240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 115513, 231026, 462052, 577565, 924104, 1155130, 2310260, 4620520, 31997101, 63994202, 127988404, 159985505, 255976808, 319971010, 639942020, 1279884040]

約数ペア:

[(1, 1279884040), (2, 639942020), (4, 319971010), (5, 255976808), (8, 159985505), (10, 127988404), (20, 63994202), (40, 31997101), (277, 4620520), (554, 2310260), (1108, 1155130), (1385, 924104), (2216, 577565), (2770, 462052), (5540, 231026), (11080, 115513)]