30531760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{54521}}^1$

素因数の和:54541

約数の個数: 40

約数和(自身を含む): 81128736

約数和(自身を除く): 50596976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 54521, 109042, 218084, 272605, 381647, 436168, 545210, 763294, 872336, 1090420, 1526588, 1908235, 2180840, 3053176, 3816470, 4361680, 6106352, 7632940, 15265880, 30531760]

約数ペア:

[(1, 30531760), (2, 15265880), (4, 7632940), (5, 6106352), (7, 4361680), (8, 3816470), (10, 3053176), (14, 2180840), (16, 1908235), (20, 1526588), (28, 1090420), (35, 872336), (40, 763294), (56, 545210), (70, 436168), (80, 381647), (112, 272605), (140, 218084), (280, 109042), (560, 54521)]