87235925

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 137401920

約数和(自身を除く): 50165995

約数列:

[1, 5, 7, 17, 25, 35, 49, 59, 71, 85, 119, 175, 245, 295, 355, 413, 425, 497, 595, 833, 1003, 1207, 1225, 1475, 1775, 2065, 2485, 2891, 2975, 3479, 4165, 4189, 5015, 6035, 7021, 8449, 10325, 12425, 14455, 17395, 20825, 20945, 25075, 29323, 30175, 35105, 42245, 49147, 59143, 71213, 72275, 86975, 104725, 146615, 175525, 205261, 211225, 245735, 295715, 356065, 498491, 733075, 1026305, 1228675, 1478575, 1780325, 2492455, 3489437, 5131525, 12462275, 17447185, 87235925]

約数ペア:

[(1, 87235925), (5, 17447185), (7, 12462275), (17, 5131525), (25, 3489437), (35, 2492455), (49, 1780325), (59, 1478575), (71, 1228675), (85, 1026305), (119, 733075), (175, 498491), (245, 356065), (295, 295715), (355, 245735), (413, 211225), (425, 205261), (497, 175525), (595, 146615), (833, 104725), (1003, 86975), (1207, 72275), (1225, 71213), (1475, 59143), (1775, 49147), (2065, 42245), (2485, 35105), (2891, 30175), (2975, 29323), (3479, 25075), (4165, 20945), (4189, 20825), (5015, 17395), (6035, 14455), (7021, 12425), (8449, 10325)]