25263280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 67763520

約数和(自身を除く): 42500240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 229, 280, 394, 458, 560, 788, 916, 985, 1145, 1379, 1576, 1603, 1832, 1970, 2290, 2758, 3152, 3206, 3664, 3940, 4580, 5516, 6412, 6895, 7880, 8015, 9160, 11032, 12824, 13790, 15760, 16030, 18320, 22064, 25648, 27580, 32060, 45113, 55160, 64120, 90226, 110320, 128240, 180452, 225565, 315791, 360904, 451130, 631582, 721808, 902260, 1263164, 1578955, 1804520, 2526328, 3157910, 3609040, 5052656, 6315820, 12631640, 25263280]

約数ペア:

[(1, 25263280), (2, 12631640), (4, 6315820), (5, 5052656), (7, 3609040), (8, 3157910), (10, 2526328), (14, 1804520), (16, 1578955), (20, 1263164), (28, 902260), (35, 721808), (40, 631582), (56, 451130), (70, 360904), (80, 315791), (112, 225565), (140, 180452), (197, 128240), (229, 110320), (280, 90226), (394, 64120), (458, 55160), (560, 45113), (788, 32060), (916, 27580), (985, 25648), (1145, 22064), (1379, 18320), (1576, 16030), (1603, 15760), (1832, 13790), (1970, 12824), (2290, 11032), (2758, 9160), (3152, 8015), (3206, 7880), (3664, 6895), (3940, 6412), (4580, 5516)]