19023620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1123}}^1$

素因数の和:1161

約数の個数: 72

約数和(自身を含む): 50229312

約数和(自身を除く): 31205692

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1123, 1210, 1540, 1694, 2246, 2420, 3388, 4235, 4492, 5615, 7861, 8470, 11230, 12353, 15722, 16940, 22460, 24706, 31444, 39305, 49412, 61765, 78610, 86471, 123530, 135883, 157220, 172942, 247060, 271766, 345884, 432355, 543532, 679415, 864710, 951181, 1358830, 1729420, 1902362, 2717660, 3804724, 4755905, 9511810, 19023620]

約数ペア:

[(1, 19023620), (2, 9511810), (4, 4755905), (5, 3804724), (7, 2717660), (10, 1902362), (11, 1729420), (14, 1358830), (20, 951181), (22, 864710), (28, 679415), (35, 543532), (44, 432355), (55, 345884), (70, 271766), (77, 247060), (110, 172942), (121, 157220), (140, 135883), (154, 123530), (220, 86471), (242, 78610), (308, 61765), (385, 49412), (484, 39305), (605, 31444), (770, 24706), (847, 22460), (1123, 16940), (1210, 15722), (1540, 12353), (1694, 11230), (2246, 8470), (2420, 7861), (3388, 5615), (4235, 4492)]