15384520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2767}}^1$

素因数の和:2917

約数の個数: 32

約数和(自身を含む): 34876800

約数和(自身を除く): 19492280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2767, 2780, 5534, 5560, 11068, 13835, 22136, 27670, 55340, 110680, 384613, 769226, 1538452, 1923065, 3076904, 3846130, 7692260, 15384520]

約数ペア:

[(1, 15384520), (2, 7692260), (4, 3846130), (5, 3076904), (8, 1923065), (10, 1538452), (20, 769226), (40, 384613), (139, 110680), (278, 55340), (556, 27670), (695, 22136), (1112, 13835), (1390, 11068), (2767, 5560), (2780, 5534)]