15721360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10343}}^1$

素因数の和:10375

約数の個数: 40

約数和(自身を含む): 38479680

約数和(自身を除く): 22758320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 10343, 20686, 41372, 51715, 82744, 103430, 165488, 196517, 206860, 393034, 413720, 786068, 827440, 982585, 1572136, 1965170, 3144272, 3930340, 7860680, 15721360]

約数ペア:

[(1, 15721360), (2, 7860680), (4, 3930340), (5, 3144272), (8, 1965170), (10, 1572136), (16, 982585), (19, 827440), (20, 786068), (38, 413720), (40, 393034), (76, 206860), (80, 196517), (95, 165488), (152, 103430), (190, 82744), (304, 51715), (380, 41372), (760, 20686), (1520, 10343)]