128366980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{916907}}^1$

素因数の和:916923

約数の個数: 24

約数和(自身を含む): 308081088

約数和(自身を除く): 179714108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 916907, 1833814, 3667628, 4584535, 6418349, 9169070, 12836698, 18338140, 25673396, 32091745, 64183490, 128366980]

約数ペア:

[(1, 128366980), (2, 64183490), (4, 32091745), (5, 25673396), (7, 18338140), (10, 12836698), (14, 9169070), (20, 6418349), (28, 4584535), (35, 3667628), (70, 1833814), (140, 916907)]