20217018520

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{934243}}^1$

素因数の和:934795

約数の個数: 32

約数和(自身を含む): 45572422320

約数和(自身を除く): 25355403800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 2164, 2705, 4328, 5410, 10820, 21640, 934243, 1868486, 3736972, 4671215, 7473944, 9342430, 18684860, 37369720, 505425463, 1010850926, 2021701852, 2527127315, 4043403704, 5054254630, 10108509260, 20217018520]

約数ペア:

[(1, 20217018520), (2, 10108509260), (4, 5054254630), (5, 4043403704), (8, 2527127315), (10, 2021701852), (20, 1010850926), (40, 505425463), (541, 37369720), (1082, 18684860), (2164, 9342430), (2705, 7473944), (4328, 4671215), (5410, 3736972), (10820, 1868486), (21640, 934243)]