639341790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21311393}}^1$

素因数の和:21311403

約数の個数: 16

約数和(自身を含む): 1534420368

約数和(自身を除く): 895078578

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21311393, 42622786, 63934179, 106556965, 127868358, 213113930, 319670895, 639341790]

約数ペア:

[(1, 639341790), (2, 319670895), (3, 213113930), (5, 127868358), (6, 106556965), (10, 63934179), (15, 42622786), (30, 21311393)]