8147720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{4157}}^1$

素因数の和:4182

約数の個数: 48

約数和(自身を含む): 21330540

約数和(自身を除く): 13182820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 4157, 8314, 16628, 20785, 29099, 33256, 41570, 58198, 83140, 116396, 145495, 166280, 203693, 232792, 290990, 407386, 581980, 814772, 1018465, 1163960, 1629544, 2036930, 4073860, 8147720]

約数ペア:

[(1, 8147720), (2, 4073860), (4, 2036930), (5, 1629544), (7, 1163960), (8, 1018465), (10, 814772), (14, 581980), (20, 407386), (28, 290990), (35, 232792), (40, 203693), (49, 166280), (56, 145495), (70, 116396), (98, 83140), (140, 58198), (196, 41570), (245, 33256), (280, 29099), (392, 20785), (490, 16628), (980, 8314), (1960, 4157)]