20199510

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 34405290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 90, 135, 158, 237, 270, 395, 474, 711, 790, 947, 1185, 1422, 1894, 2133, 2370, 2841, 3555, 4266, 4735, 5682, 7110, 8523, 9470, 10665, 14205, 17046, 21330, 25569, 28410, 42615, 51138, 74813, 85230, 127845, 149626, 224439, 255690, 374065, 448878, 673317, 748130, 1122195, 1346634, 2019951, 2244390, 3366585, 4039902, 6733170, 10099755, 20199510]

約数ペア:

[(1, 20199510), (2, 10099755), (3, 6733170), (5, 4039902), (6, 3366585), (9, 2244390), (10, 2019951), (15, 1346634), (18, 1122195), (27, 748130), (30, 673317), (45, 448878), (54, 374065), (79, 255690), (90, 224439), (135, 149626), (158, 127845), (237, 85230), (270, 74813), (395, 51138), (474, 42615), (711, 28410), (790, 25569), (947, 21330), (1185, 17046), (1422, 14205), (1894, 10665), (2133, 9470), (2370, 8523), (2841, 7110), (3555, 5682), (4266, 4735)]