8821960

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{643}}^1$

素因数の和:675

約数の個数: 64

約数和(自身を含む): 23184000

約数和(自身を除く): 14362040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 643, 686, 980, 1286, 1372, 1715, 1960, 2572, 2744, 3215, 3430, 4501, 5144, 6430, 6860, 9002, 12860, 13720, 18004, 22505, 25720, 31507, 36008, 45010, 63014, 90020, 126028, 157535, 180040, 220549, 252056, 315070, 441098, 630140, 882196, 1102745, 1260280, 1764392, 2205490, 4410980, 8821960]

約数ペア:

[(1, 8821960), (2, 4410980), (4, 2205490), (5, 1764392), (7, 1260280), (8, 1102745), (10, 882196), (14, 630140), (20, 441098), (28, 315070), (35, 252056), (40, 220549), (49, 180040), (56, 157535), (70, 126028), (98, 90020), (140, 63014), (196, 45010), (245, 36008), (280, 31507), (343, 25720), (392, 22505), (490, 18004), (643, 13720), (686, 12860), (980, 9002), (1286, 6860), (1372, 6430), (1715, 5144), (1960, 4501), (2572, 3430), (2744, 3215)]