256429400

素因数分解:

$2^3\times 5^2\times {\mathrm{503}}^1\times {\mathrm{2549}}^1$

素因数の和:3068

約数の個数: 48

約数和(自身を含む): 597618000

約数和(自身を除く): 341188600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 503, 1006, 2012, 2515, 2549, 4024, 5030, 5098, 10060, 10196, 12575, 12745, 20120, 20392, 25150, 25490, 50300, 50980, 63725, 100600, 101960, 127450, 254900, 509800, 1282147, 2564294, 5128588, 6410735, 10257176, 12821470, 25642940, 32053675, 51285880, 64107350, 128214700, 256429400]

約数ペア:

[(1, 256429400), (2, 128214700), (4, 64107350), (5, 51285880), (8, 32053675), (10, 25642940), (20, 12821470), (25, 10257176), (40, 6410735), (50, 5128588), (100, 2564294), (200, 1282147), (503, 509800), (1006, 254900), (2012, 127450), (2515, 101960), (2549, 100600), (4024, 63725), (5030, 50980), (5098, 50300), (10060, 25490), (10196, 25150), (12575, 20392), (12745, 20120)]