20841780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4397}}^1$

素因数の和:4488

約数の個数: 48

約数和(自身を含む): 59109120

約数和(自身を除く): 38267340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4397, 4740, 8794, 13191, 17588, 21985, 26382, 43970, 52764, 65955, 87940, 131910, 263820, 347363, 694726, 1042089, 1389452, 1736815, 2084178, 3473630, 4168356, 5210445, 6947260, 10420890, 20841780]

約数ペア:

[(1, 20841780), (2, 10420890), (3, 6947260), (4, 5210445), (5, 4168356), (6, 3473630), (10, 2084178), (12, 1736815), (15, 1389452), (20, 1042089), (30, 694726), (60, 347363), (79, 263820), (158, 131910), (237, 87940), (316, 65955), (395, 52764), (474, 43970), (790, 26382), (948, 21985), (1185, 17588), (1580, 13191), (2370, 8794), (4397, 4740)]