202020080

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{24517}}^1$

素因数の和:24633

約数の個数: 40

約数和(自身を含む): 474276192

約数和(自身を除く): 272256112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 24517, 49034, 98068, 122585, 196136, 245170, 392272, 490340, 980680, 1961360, 2525251, 5050502, 10101004, 12626255, 20202008, 25252510, 40404016, 50505020, 101010040, 202020080]

約数ペア:

[(1, 202020080), (2, 101010040), (4, 50505020), (5, 40404016), (8, 25252510), (10, 20202008), (16, 12626255), (20, 10101004), (40, 5050502), (80, 2525251), (103, 1961360), (206, 980680), (412, 490340), (515, 392272), (824, 245170), (1030, 196136), (1648, 122585), (2060, 98068), (4120, 49034), (8240, 24517)]