18237800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{1861}}^1$

素因数の和:1891

約数の個数: 72

約数和(自身を含む): 49352310

約数和(自身を除く): 31114510

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1861, 1960, 2450, 3722, 4900, 7444, 9305, 9800, 13027, 14888, 18610, 26054, 37220, 46525, 52108, 65135, 74440, 91189, 93050, 104216, 130270, 182378, 186100, 260540, 325675, 364756, 372200, 455945, 521080, 651350, 729512, 911890, 1302700, 1823780, 2279725, 2605400, 3647560, 4559450, 9118900, 18237800]

約数ペア:

[(1, 18237800), (2, 9118900), (4, 4559450), (5, 3647560), (7, 2605400), (8, 2279725), (10, 1823780), (14, 1302700), (20, 911890), (25, 729512), (28, 651350), (35, 521080), (40, 455945), (49, 372200), (50, 364756), (56, 325675), (70, 260540), (98, 186100), (100, 182378), (140, 130270), (175, 104216), (196, 93050), (200, 91189), (245, 74440), (280, 65135), (350, 52108), (392, 46525), (490, 37220), (700, 26054), (980, 18610), (1225, 14888), (1400, 13027), (1861, 9800), (1960, 9305), (2450, 7444), (3722, 4900)]