254191640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^2\times {\mathrm{599}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 578502000

約数和(自身を除く): 324310360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 599, 824, 1030, 1198, 2060, 2396, 2995, 4120, 4792, 5990, 10609, 11980, 21218, 23960, 42436, 53045, 61697, 84872, 106090, 123394, 212180, 246788, 308485, 424360, 493576, 616970, 1233940, 2467880, 6354791, 12709582, 25419164, 31773955, 50838328, 63547910, 127095820, 254191640]

約数ペア:

[(1, 254191640), (2, 127095820), (4, 63547910), (5, 50838328), (8, 31773955), (10, 25419164), (20, 12709582), (40, 6354791), (103, 2467880), (206, 1233940), (412, 616970), (515, 493576), (599, 424360), (824, 308485), (1030, 246788), (1198, 212180), (2060, 123394), (2396, 106090), (2995, 84872), (4120, 61697), (4792, 53045), (5990, 42436), (10609, 23960), (11980, 21218)]