87398780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{624277}}^1$

素因数の和:624293

約数の個数: 24

約数和(自身を含む): 209757408

約数和(自身を除く): 122358628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 624277, 1248554, 2497108, 3121385, 4369939, 6242770, 8739878, 12485540, 17479756, 21849695, 43699390, 87398780]

約数ペア:

[(1, 87398780), (2, 43699390), (4, 21849695), (5, 17479756), (7, 12485540), (10, 8739878), (14, 6242770), (20, 4369939), (28, 3121385), (35, 2497108), (70, 1248554), (140, 624277)]