28839440

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1051}}^1$

素因数の和:1085

約数の個数: 80

約数和(自身を含む): 78268800

約数和(自身を除く): 49429360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1051, 1372, 1715, 1960, 2102, 2744, 3430, 3920, 4204, 5255, 5488, 6860, 7357, 8408, 10510, 13720, 14714, 16816, 21020, 27440, 29428, 36785, 42040, 51499, 58856, 73570, 84080, 102998, 117712, 147140, 205996, 257495, 294280, 360493, 411992, 514990, 588560, 720986, 823984, 1029980, 1441972, 1802465, 2059960, 2883944, 3604930, 4119920, 5767888, 7209860, 14419720, 28839440]

約数ペア:

[(1, 28839440), (2, 14419720), (4, 7209860), (5, 5767888), (7, 4119920), (8, 3604930), (10, 2883944), (14, 2059960), (16, 1802465), (20, 1441972), (28, 1029980), (35, 823984), (40, 720986), (49, 588560), (56, 514990), (70, 411992), (80, 360493), (98, 294280), (112, 257495), (140, 205996), (196, 147140), (245, 117712), (280, 102998), (343, 84080), (392, 73570), (490, 58856), (560, 51499), (686, 42040), (784, 36785), (980, 29428), (1051, 27440), (1372, 21020), (1715, 16816), (1960, 14714), (2102, 13720), (2744, 10510), (3430, 8408), (3920, 7357), (4204, 6860), (5255, 5488)]