130381720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{465649}}^1$

素因数の和:465667

約数の個数: 32

約数和(自身を含む): 335268000

約数和(自身を除く): 204886280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 465649, 931298, 1862596, 2328245, 3259543, 3725192, 4656490, 6519086, 9312980, 13038172, 16297715, 18625960, 26076344, 32595430, 65190860, 130381720]

約数ペア:

[(1, 130381720), (2, 65190860), (4, 32595430), (5, 26076344), (7, 18625960), (8, 16297715), (10, 13038172), (14, 9312980), (20, 6519086), (28, 4656490), (35, 3725192), (40, 3259543), (56, 2328245), (70, 1862596), (140, 931298), (280, 465649)]