19168100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 28953820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 139, 140, 175, 197, 278, 350, 394, 556, 695, 700, 788, 973, 985, 1379, 1390, 1946, 1970, 2758, 2780, 3475, 3892, 3940, 4865, 4925, 5516, 6895, 6950, 9730, 9850, 13790, 13900, 19460, 19700, 24325, 27383, 27580, 34475, 48650, 54766, 68950, 97300, 109532, 136915, 137900, 191681, 273830, 383362, 547660, 684575, 766724, 958405, 1369150, 1916810, 2738300, 3833620, 4792025, 9584050, 19168100]

約数ペア:

[(1, 19168100), (2, 9584050), (4, 4792025), (5, 3833620), (7, 2738300), (10, 1916810), (14, 1369150), (20, 958405), (25, 766724), (28, 684575), (35, 547660), (50, 383362), (70, 273830), (100, 191681), (139, 137900), (140, 136915), (175, 109532), (197, 97300), (278, 68950), (350, 54766), (394, 48650), (556, 34475), (695, 27580), (700, 27383), (788, 24325), (973, 19700), (985, 19460), (1379, 13900), (1390, 13790), (1946, 9850), (1970, 9730), (2758, 6950), (2780, 6895), (3475, 5516), (3892, 4925), (3940, 4865)]