215550725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 308105280

約数和(自身を除く): 92554555

約数列:

[1, 5, 13, 19, 25, 65, 67, 95, 247, 325, 335, 475, 521, 871, 1235, 1273, 1675, 2605, 4355, 6175, 6365, 6773, 9899, 13025, 16549, 21775, 31825, 33865, 34907, 49495, 82745, 128687, 169325, 174535, 247475, 413725, 453791, 643435, 663233, 872675, 2268955, 3217175, 3316165, 8622029, 11344775, 16580825, 43110145, 215550725]

約数ペア:

[(1, 215550725), (5, 43110145), (13, 16580825), (19, 11344775), (25, 8622029), (65, 3316165), (67, 3217175), (95, 2268955), (247, 872675), (325, 663233), (335, 643435), (475, 453791), (521, 413725), (871, 247475), (1235, 174535), (1273, 169325), (1675, 128687), (2605, 82745), (4355, 49495), (6175, 34907), (6365, 33865), (6773, 31825), (9899, 21775), (13025, 16549)]