21240405625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1093}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 29528547840

約数和(自身を除く): 8288142215

約数列:

[1, 5, 17, 25, 31, 59, 85, 125, 155, 295, 425, 527, 625, 775, 1003, 1093, 1475, 1829, 2125, 2635, 3875, 5015, 5465, 7375, 9145, 10625, 13175, 18581, 19375, 25075, 27325, 31093, 33883, 36875, 45725, 64487, 65875, 92905, 125375, 136625, 155465, 169415, 228625, 322435, 329375, 464525, 576011, 626875, 683125, 777325, 847075, 1096279, 1143125, 1612175, 1999097, 2322625, 2880055, 3886625, 4235375, 5481395, 8060875, 9995485, 11613125, 14400275, 19433125, 21176875, 27406975, 33984649, 40304375, 49977425, 72001375, 137034875, 169923245, 249887125, 360006875, 685174375, 849616225, 1249435625, 4248081125, 21240405625]

約数ペア:

[(1, 21240405625), (5, 4248081125), (17, 1249435625), (25, 849616225), (31, 685174375), (59, 360006875), (85, 249887125), (125, 169923245), (155, 137034875), (295, 72001375), (425, 49977425), (527, 40304375), (625, 33984649), (775, 27406975), (1003, 21176875), (1093, 19433125), (1475, 14400275), (1829, 11613125), (2125, 9995485), (2635, 8060875), (3875, 5481395), (5015, 4235375), (5465, 3886625), (7375, 2880055), (9145, 2322625), (10625, 1999097), (13175, 1612175), (18581, 1143125), (19375, 1096279), (25075, 847075), (27325, 777325), (31093, 683125), (33883, 626875), (36875, 576011), (45725, 464525), (64487, 329375), (65875, 322435), (92905, 228625), (125375, 169415), (136625, 155465)]