1636520

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 3719520

約数和(自身を除く): 2083000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 251, 326, 502, 652, 815, 1004, 1255, 1304, 1630, 2008, 2510, 3260, 5020, 6520, 10040, 40913, 81826, 163652, 204565, 327304, 409130, 818260, 1636520]

約数ペア:

[(1, 1636520), (2, 818260), (4, 409130), (5, 327304), (8, 204565), (10, 163652), (20, 81826), (40, 40913), (163, 10040), (251, 6520), (326, 5020), (502, 3260), (652, 2510), (815, 2008), (1004, 1630), (1255, 1304)]