20487872

素因数分解:

$2^6\times {\mathrm{157}}^1\times {\mathrm{2039}}^1$

素因数の和:2208

約数の個数: 28

約数和(自身を含む): 40934640

約数和(自身を除く): 20446768

約数列:

[1, 2, 4, 8, 16, 32, 64, 157, 314, 628, 1256, 2039, 2512, 4078, 5024, 8156, 10048, 16312, 32624, 65248, 130496, 320123, 640246, 1280492, 2560984, 5121968, 10243936, 20487872]

約数ペア:

[(1, 20487872), (2, 10243936), (4, 5121968), (8, 2560984), (16, 1280492), (32, 640246), (64, 320123), (157, 130496), (314, 65248), (628, 32624), (1256, 16312), (2039, 10048), (2512, 8156), (4078, 5024)]