256598500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{12517}}^1$

素因数の和:12577

約数の個数: 48

約数和(自身を含む): 574125552

約数和(自身を除く): 317527052

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 1025, 2050, 4100, 5125, 10250, 12517, 20500, 25034, 50068, 62585, 125170, 250340, 312925, 513197, 625850, 1026394, 1251700, 1564625, 2052788, 2565985, 3129250, 5131970, 6258500, 10263940, 12829925, 25659850, 51319700, 64149625, 128299250, 256598500]

約数ペア:

[(1, 256598500), (2, 128299250), (4, 64149625), (5, 51319700), (10, 25659850), (20, 12829925), (25, 10263940), (41, 6258500), (50, 5131970), (82, 3129250), (100, 2565985), (125, 2052788), (164, 1564625), (205, 1251700), (250, 1026394), (410, 625850), (500, 513197), (820, 312925), (1025, 250340), (2050, 125170), (4100, 62585), (5125, 50068), (10250, 25034), (12517, 20500)]