181841320

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{2281}}^1$

素因数の和:4285

約数の個数: 32

約数和(自身を含む): 409527720

約数和(自身を除く): 227686400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 2281, 3986, 4562, 7972, 9124, 9965, 11405, 15944, 18248, 19930, 22810, 39860, 45620, 79720, 91240, 4546033, 9092066, 18184132, 22730165, 36368264, 45460330, 90920660, 181841320]

約数ペア:

[(1, 181841320), (2, 90920660), (4, 45460330), (5, 36368264), (8, 22730165), (10, 18184132), (20, 9092066), (40, 4546033), (1993, 91240), (2281, 79720), (3986, 45620), (4562, 39860), (7972, 22810), (9124, 19930), (9965, 18248), (11405, 15944)]