11917720

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{743}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 26917920

約数和(自身を除く): 15000200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 743, 802, 1486, 1604, 2005, 2972, 3208, 3715, 4010, 5944, 7430, 8020, 14860, 16040, 29720, 297943, 595886, 1191772, 1489715, 2383544, 2979430, 5958860, 11917720]

約数ペア:

[(1, 11917720), (2, 5958860), (4, 2979430), (5, 2383544), (8, 1489715), (10, 1191772), (20, 595886), (40, 297943), (401, 29720), (743, 16040), (802, 14860), (1486, 8020), (1604, 7430), (2005, 5944), (2972, 4010), (3208, 3715)]