15215120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4423}}^1$

素因数の和:4479

約数の個数: 40

約数和(自身を含む): 36206016

約数和(自身を除く): 20990896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4423, 8846, 17692, 22115, 35384, 44230, 70768, 88460, 176920, 190189, 353840, 380378, 760756, 950945, 1521512, 1901890, 3043024, 3803780, 7607560, 15215120]

約数ペア:

[(1, 15215120), (2, 7607560), (4, 3803780), (5, 3043024), (8, 1901890), (10, 1521512), (16, 950945), (20, 760756), (40, 380378), (43, 353840), (80, 190189), (86, 176920), (172, 88460), (215, 70768), (344, 44230), (430, 35384), (688, 22115), (860, 17692), (1720, 8846), (3440, 4423)]