239820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{571}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 768768

約数和(自身を除く): 528948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 571, 1142, 1713, 2284, 2855, 3426, 3997, 5710, 6852, 7994, 8565, 11420, 11991, 15988, 17130, 19985, 23982, 34260, 39970, 47964, 59955, 79940, 119910, 239820]

約数ペア:

[(1, 239820), (2, 119910), (3, 79940), (4, 59955), (5, 47964), (6, 39970), (7, 34260), (10, 23982), (12, 19985), (14, 17130), (15, 15988), (20, 11991), (21, 11420), (28, 8565), (30, 7994), (35, 6852), (42, 5710), (60, 3997), (70, 3426), (84, 2855), (105, 2284), (140, 1713), (210, 1142), (420, 571)]