2019381820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1655231}}^1$

素因数の和:1655301

約数の個数: 24

約数和(自身を含む): 4310224128

約数和(自身を除く): 2290842308

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1655231, 3310462, 6620924, 8276155, 16552310, 33104620, 100969091, 201938182, 403876364, 504845455, 1009690910, 2019381820]

約数ペア:

[(1, 2019381820), (2, 1009690910), (4, 504845455), (5, 403876364), (10, 201938182), (20, 100969091), (61, 33104620), (122, 16552310), (244, 8276155), (305, 6620924), (610, 3310462), (1220, 1655231)]