19768700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 50663424

約数和(自身を除く): 30894724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 911, 1085, 1550, 1822, 2170, 3100, 3644, 4340, 4555, 5425, 6377, 9110, 10850, 12754, 18220, 21700, 22775, 25508, 28241, 31885, 45550, 56482, 63770, 91100, 112964, 127540, 141205, 159425, 197687, 282410, 318850, 395374, 564820, 637700, 706025, 790748, 988435, 1412050, 1976870, 2824100, 3953740, 4942175, 9884350, 19768700]

約数ペア:

[(1, 19768700), (2, 9884350), (4, 4942175), (5, 3953740), (7, 2824100), (10, 1976870), (14, 1412050), (20, 988435), (25, 790748), (28, 706025), (31, 637700), (35, 564820), (50, 395374), (62, 318850), (70, 282410), (100, 197687), (124, 159425), (140, 141205), (155, 127540), (175, 112964), (217, 91100), (310, 63770), (350, 56482), (434, 45550), (620, 31885), (700, 28241), (775, 25508), (868, 22775), (911, 21700), (1085, 18220), (1550, 12754), (1822, 10850), (2170, 9110), (3100, 6377), (3644, 5425), (4340, 4555)]