19744900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 49816256

約数和(自身を除く): 30071356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 421, 469, 670, 700, 842, 938, 1340, 1675, 1684, 1876, 2105, 2345, 2947, 3350, 4210, 4690, 5894, 6700, 8420, 9380, 10525, 11725, 11788, 14735, 21050, 23450, 28207, 29470, 42100, 46900, 56414, 58940, 73675, 112828, 141035, 147350, 197449, 282070, 294700, 394898, 564140, 705175, 789796, 987245, 1410350, 1974490, 2820700, 3948980, 4936225, 9872450, 19744900]

約数ペア:

[(1, 19744900), (2, 9872450), (4, 4936225), (5, 3948980), (7, 2820700), (10, 1974490), (14, 1410350), (20, 987245), (25, 789796), (28, 705175), (35, 564140), (50, 394898), (67, 294700), (70, 282070), (100, 197449), (134, 147350), (140, 141035), (175, 112828), (268, 73675), (335, 58940), (350, 56414), (421, 46900), (469, 42100), (670, 29470), (700, 28207), (842, 23450), (938, 21050), (1340, 14735), (1675, 11788), (1684, 11725), (1876, 10525), (2105, 9380), (2345, 8420), (2947, 6700), (3350, 5894), (4210, 4690)]