30025720

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1783}}^1$

素因数の和:2215

約数の個数: 32

約数和(自身を含む): 67756320

約数和(自身を除く): 37730600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 1783, 2105, 3368, 3566, 4210, 7132, 8420, 8915, 14264, 16840, 17830, 35660, 71320, 750643, 1501286, 3002572, 3753215, 6005144, 7506430, 15012860, 30025720]

約数ペア:

[(1, 30025720), (2, 15012860), (4, 7506430), (5, 6005144), (8, 3753215), (10, 3002572), (20, 1501286), (40, 750643), (421, 71320), (842, 35660), (1684, 17830), (1783, 16840), (2105, 14264), (3368, 8915), (3566, 8420), (4210, 7132)]