201121720

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{14407}}^1$

素因数の和:14767

約数の個数: 32

約数和(自身を含む): 453852000

約数和(自身を除く): 252730280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 14407, 28814, 57628, 72035, 115256, 144070, 288140, 576280, 5028043, 10056086, 20112172, 25140215, 40224344, 50280430, 100560860, 201121720]

約数ペア:

[(1, 201121720), (2, 100560860), (4, 50280430), (5, 40224344), (8, 25140215), (10, 20112172), (20, 10056086), (40, 5028043), (349, 576280), (698, 288140), (1396, 144070), (1745, 115256), (2792, 72035), (3490, 57628), (6980, 28814), (13960, 14407)]