19942620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{653}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 56034720

約数和(自身を除く): 36092100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 653, 1018, 1306, 1527, 1959, 2036, 2545, 2612, 3054, 3265, 3918, 5090, 6108, 6530, 7635, 7836, 9795, 10180, 13060, 15270, 19590, 30540, 39180, 332377, 664754, 997131, 1329508, 1661885, 1994262, 3323770, 3988524, 4985655, 6647540, 9971310, 19942620]

約数ペア:

[(1, 19942620), (2, 9971310), (3, 6647540), (4, 4985655), (5, 3988524), (6, 3323770), (10, 1994262), (12, 1661885), (15, 1329508), (20, 997131), (30, 664754), (60, 332377), (509, 39180), (653, 30540), (1018, 19590), (1306, 15270), (1527, 13060), (1959, 10180), (2036, 9795), (2545, 7836), (2612, 7635), (3054, 6530), (3265, 6108), (3918, 5090)]