251019925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 367610400

約数和(自身を除く): 116590475

約数列:

[1, 5, 13, 19, 25, 53, 59, 65, 95, 169, 247, 265, 295, 325, 475, 689, 767, 845, 1007, 1121, 1235, 1325, 1475, 3127, 3211, 3445, 3835, 4225, 5035, 5605, 6175, 8957, 9971, 13091, 14573, 15635, 16055, 17225, 19175, 25175, 28025, 40651, 44785, 49855, 59413, 65455, 72865, 78175, 80275, 170183, 189449, 203255, 223925, 249275, 297065, 327275, 364325, 528463, 772369, 850915, 947245, 1016275, 1485325, 2642315, 3861845, 4254575, 4736225, 10040797, 13211575, 19309225, 50203985, 251019925]

約数ペア:

[(1, 251019925), (5, 50203985), (13, 19309225), (19, 13211575), (25, 10040797), (53, 4736225), (59, 4254575), (65, 3861845), (95, 2642315), (169, 1485325), (247, 1016275), (265, 947245), (295, 850915), (325, 772369), (475, 528463), (689, 364325), (767, 327275), (845, 297065), (1007, 249275), (1121, 223925), (1235, 203255), (1325, 189449), (1475, 170183), (3127, 80275), (3211, 78175), (3445, 72865), (3835, 65455), (4225, 59413), (5035, 49855), (5605, 44785), (6175, 40651), (8957, 28025), (9971, 25175), (13091, 19175), (14573, 17225), (15635, 16055)]