19752425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 31617024

約数和(自身を除く): 11864599

約数列:

[1, 5, 7, 11, 25, 31, 35, 55, 77, 155, 175, 217, 275, 331, 341, 385, 775, 1085, 1655, 1705, 1925, 2317, 2387, 3641, 5425, 8275, 8525, 10261, 11585, 11935, 18205, 25487, 51305, 57925, 59675, 71827, 91025, 112871, 127435, 256525, 359135, 564355, 637175, 790097, 1795675, 2821775, 3950485, 19752425]

約数ペア:

[(1, 19752425), (5, 3950485), (7, 2821775), (11, 1795675), (25, 790097), (31, 637175), (35, 564355), (55, 359135), (77, 256525), (155, 127435), (175, 112871), (217, 91025), (275, 71827), (331, 59675), (341, 57925), (385, 51305), (775, 25487), (1085, 18205), (1655, 11935), (1705, 11585), (1925, 10261), (2317, 8525), (2387, 8275), (3641, 5425)]