19417825

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 29890944

約数和(自身を除く): 10473119

約数列:

[1, 5, 7, 17, 25, 35, 61, 85, 107, 119, 175, 305, 425, 427, 535, 595, 749, 1037, 1525, 1819, 2135, 2675, 2975, 3745, 5185, 6527, 7259, 9095, 10675, 12733, 18725, 25925, 32635, 36295, 45475, 45689, 63665, 110959, 163175, 181475, 228445, 318325, 554795, 776713, 1142225, 2773975, 3883565, 19417825]

約数ペア:

[(1, 19417825), (5, 3883565), (7, 2773975), (17, 1142225), (25, 776713), (35, 554795), (61, 318325), (85, 228445), (107, 181475), (119, 163175), (175, 110959), (305, 63665), (425, 45689), (427, 45475), (535, 36295), (595, 32635), (749, 25925), (1037, 18725), (1525, 12733), (1819, 10675), (2135, 9095), (2675, 7259), (2975, 6527), (3745, 5185)]