21650300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 54309024

約数和(自身を除く): 32658724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 197, 314, 350, 394, 628, 700, 785, 788, 985, 1099, 1379, 1570, 1970, 2198, 2758, 3140, 3925, 3940, 4396, 4925, 5495, 5516, 6895, 7850, 9850, 10990, 13790, 15700, 19700, 21980, 27475, 27580, 30929, 34475, 54950, 61858, 68950, 109900, 123716, 137900, 154645, 216503, 309290, 433006, 618580, 773225, 866012, 1082515, 1546450, 2165030, 3092900, 4330060, 5412575, 10825150, 21650300]

約数ペア:

[(1, 21650300), (2, 10825150), (4, 5412575), (5, 4330060), (7, 3092900), (10, 2165030), (14, 1546450), (20, 1082515), (25, 866012), (28, 773225), (35, 618580), (50, 433006), (70, 309290), (100, 216503), (140, 154645), (157, 137900), (175, 123716), (197, 109900), (314, 68950), (350, 61858), (394, 54950), (628, 34475), (700, 30929), (785, 27580), (788, 27475), (985, 21980), (1099, 19700), (1379, 15700), (1570, 13790), (1970, 10990), (2198, 9850), (2758, 7850), (3140, 6895), (3925, 5516), (3940, 5495), (4396, 4925)]