25830025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 11667575

約数列:

[1, 5, 13, 19, 25, 47, 65, 89, 95, 235, 247, 325, 445, 475, 611, 893, 1157, 1175, 1235, 1691, 2225, 3055, 4183, 4465, 5785, 6175, 8455, 11609, 15275, 20915, 21983, 22325, 28925, 42275, 54379, 58045, 79477, 104575, 109915, 271895, 290225, 397385, 549575, 1033201, 1359475, 1986925, 5166005, 25830025]

約数ペア:

[(1, 25830025), (5, 5166005), (13, 1986925), (19, 1359475), (25, 1033201), (47, 549575), (65, 397385), (89, 290225), (95, 271895), (235, 109915), (247, 104575), (325, 79477), (445, 58045), (475, 54379), (611, 42275), (893, 28925), (1157, 22325), (1175, 21983), (1235, 20915), (1691, 15275), (2225, 11609), (3055, 8455), (4183, 6175), (4465, 5785)]