19119800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{1951}}^1$

素因数の和:1981

約数の個数: 72

約数和(自身を含む): 51737760

約数和(自身を除く): 32617960

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, 1951, 1960, 2450, 3902, 4900, 7804, 9755, 9800, 13657, 15608, 19510, 27314, 39020, 48775, 54628, 68285, 78040, 95599, 97550, 109256, 136570, 191198, 195100, 273140, 341425, 382396, 390200, 477995, 546280, 682850, 764792, 955990, 1365700, 1911980, 2389975, 2731400, 3823960, 4779950, 9559900, 19119800]

約数ペア:

[(1, 19119800), (2, 9559900), (4, 4779950), (5, 3823960), (7, 2731400), (8, 2389975), (10, 1911980), (14, 1365700), (20, 955990), (25, 764792), (28, 682850), (35, 546280), (40, 477995), (49, 390200), (50, 382396), (56, 341425), (70, 273140), (98, 195100), (100, 191198), (140, 136570), (175, 109256), (196, 97550), (200, 95599), (245, 78040), (280, 68285), (350, 54628), (392, 48775), (490, 39020), (700, 27314), (980, 19510), (1225, 15608), (1400, 13657), (1951, 9800), (1960, 9755), (2450, 7804), (3902, 4900)]