208793900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{42611}}^1$

素因数の和:42639

約数の個数: 54

約数和(自身を含む): 527067828

約数和(自身を除く): 318273928

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 42611, 85222, 170444, 213055, 298277, 426110, 596554, 852220, 1065275, 1193108, 1491385, 2087939, 2130550, 2982770, 4175878, 4261100, 5965540, 7456925, 8351756, 10439695, 14913850, 20879390, 29827700, 41758780, 52198475, 104396950, 208793900]

約数ペア:

[(1, 208793900), (2, 104396950), (4, 52198475), (5, 41758780), (7, 29827700), (10, 20879390), (14, 14913850), (20, 10439695), (25, 8351756), (28, 7456925), (35, 5965540), (49, 4261100), (50, 4175878), (70, 2982770), (98, 2130550), (100, 2087939), (140, 1491385), (175, 1193108), (196, 1065275), (245, 852220), (350, 596554), (490, 426110), (700, 298277), (980, 213055), (1225, 170444), (2450, 85222), (4900, 42611)]