66439940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{474571}}^1$

素因数の和:474587

約数の個数: 24

約数和(自身を含む): 159456192

約数和(自身を除く): 93016252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 474571, 949142, 1898284, 2372855, 3321997, 4745710, 6643994, 9491420, 13287988, 16609985, 33219970, 66439940]

約数ペア:

[(1, 66439940), (2, 33219970), (4, 16609985), (5, 13287988), (7, 9491420), (10, 6643994), (14, 4745710), (20, 3321997), (28, 2372855), (35, 1898284), (70, 949142), (140, 474571)]