85398460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{609989}}^1$

素因数の和:610005

約数の個数: 24

約数和(自身を含む): 204956640

約数和(自身を除く): 119558180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 609989, 1219978, 2439956, 3049945, 4269923, 6099890, 8539846, 12199780, 17079692, 21349615, 42699230, 85398460]

約数ペア:

[(1, 85398460), (2, 42699230), (4, 21349615), (5, 17079692), (7, 12199780), (10, 8539846), (14, 6099890), (20, 4269923), (28, 3049945), (35, 2439956), (70, 1219978), (140, 609989)]