20190492025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^2$

素因数の和:695

約数の個数: 72

約数和(自身を含む): 29547171360

約数和(自身を除く): 9356679335

約数列:

[1, 5, 11, 19, 25, 41, 55, 95, 205, 209, 275, 307, 451, 475, 779, 1025, 1045, 1535, 2255, 3377, 3895, 5225, 5833, 7675, 8569, 11275, 12587, 16885, 19475, 29165, 42845, 62935, 64163, 84425, 94249, 138457, 145825, 214225, 239153, 314675, 320815, 471245, 692285, 1036739, 1195765, 1604075, 1790731, 2356225, 2630683, 3461425, 3864209, 5183695, 5978825, 8953655, 13153415, 19321045, 19698041, 25918475, 42506299, 44768275, 65767075, 73419971, 96605225, 98490205, 212531495, 367099855, 492451025, 807619681, 1062657475, 1835499275, 4038098405, 20190492025]

約数ペア:

[(1, 20190492025), (5, 4038098405), (11, 1835499275), (19, 1062657475), (25, 807619681), (41, 492451025), (55, 367099855), (95, 212531495), (205, 98490205), (209, 96605225), (275, 73419971), (307, 65767075), (451, 44768275), (475, 42506299), (779, 25918475), (1025, 19698041), (1045, 19321045), (1535, 13153415), (2255, 8953655), (3377, 5978825), (3895, 5183695), (5225, 3864209), (5833, 3461425), (7675, 2630683), (8569, 2356225), (11275, 1790731), (12587, 1604075), (16885, 1195765), (19475, 1036739), (29165, 692285), (42845, 471245), (62935, 320815), (64163, 314675), (84425, 239153), (94249, 214225), (138457, 145825)]