20121664040

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1348637}}^1$

素因数の和:1349021

約数の個数: 32

約数和(自身を含む): 45395155080

約数和(自身を除く): 25273491040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2984, 3730, 7460, 14920, 1348637, 2697274, 5394548, 6743185, 10789096, 13486370, 26972740, 53945480, 503041601, 1006083202, 2012166404, 2515208005, 4024332808, 5030416010, 10060832020, 20121664040]

約数ペア:

[(1, 20121664040), (2, 10060832020), (4, 5030416010), (5, 4024332808), (8, 2515208005), (10, 2012166404), (20, 1006083202), (40, 503041601), (373, 53945480), (746, 26972740), (1492, 13486370), (1865, 10789096), (2984, 6743185), (3730, 5394548), (7460, 2697274), (14920, 1348637)]