29948840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6869}}^1$

素因数の和:6989

約数の個数: 32

約数和(自身を含む): 68013000

約数和(自身を除く): 38064160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6869, 13738, 27476, 34345, 54952, 68690, 137380, 274760, 748721, 1497442, 2994884, 3743605, 5989768, 7487210, 14974420, 29948840]

約数ペア:

[(1, 29948840), (2, 14974420), (4, 7487210), (5, 5989768), (8, 3743605), (10, 2994884), (20, 1497442), (40, 748721), (109, 274760), (218, 137380), (436, 68690), (545, 54952), (872, 34345), (1090, 27476), (2180, 13738), (4360, 6869)]