561938260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2161301}}^1$

素因数の和:2161323

約数の個数: 24

約数和(自身を含む): 1270845576

約数和(自身を除く): 708907316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2161301, 4322602, 8645204, 10806505, 21613010, 28096913, 43226020, 56193826, 112387652, 140484565, 280969130, 561938260]

約数ペア:

[(1, 561938260), (2, 280969130), (4, 140484565), (5, 112387652), (10, 56193826), (13, 43226020), (20, 28096913), (26, 21613010), (52, 10806505), (65, 8645204), (130, 4322602), (260, 2161301)]