808601300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{941}}^1$

素因数の和:1629

約数の個数: 72

約数和(自身を含む): 1894508952

約数和(自身を除く): 1085907652

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 661, 941, 1300, 1322, 1882, 2644, 3305, 3764, 4705, 6610, 8593, 9410, 12233, 13220, 16525, 17186, 18820, 23525, 24466, 33050, 34372, 42965, 47050, 48932, 61165, 66100, 85930, 94100, 122330, 171860, 214825, 244660, 305825, 429650, 611650, 622001, 859300, 1223300, 1244002, 2488004, 3110005, 6220010, 8086013, 12440020, 15550025, 16172026, 31100050, 32344052, 40430065, 62200100, 80860130, 161720260, 202150325, 404300650, 808601300]

約数ペア:

[(1, 808601300), (2, 404300650), (4, 202150325), (5, 161720260), (10, 80860130), (13, 62200100), (20, 40430065), (25, 32344052), (26, 31100050), (50, 16172026), (52, 15550025), (65, 12440020), (100, 8086013), (130, 6220010), (260, 3110005), (325, 2488004), (650, 1244002), (661, 1223300), (941, 859300), (1300, 622001), (1322, 611650), (1882, 429650), (2644, 305825), (3305, 244660), (3764, 214825), (4705, 171860), (6610, 122330), (8593, 94100), (9410, 85930), (12233, 66100), (13220, 61165), (16525, 48932), (17186, 47050), (18820, 42965), (23525, 34372), (24466, 33050)]