20711320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10567}}^1$

素因数の和:10592

約数の個数: 48

約数和(自身を含む): 54213840

約数和(自身を除く): 33502520

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, 10567, 21134, 42268, 52835, 73969, 84536, 105670, 147938, 211340, 295876, 369845, 422680, 517783, 591752, 739690, 1035566, 1479380, 2071132, 2588915, 2958760, 4142264, 5177830, 10355660, 20711320]

約数ペア:

[(1, 20711320), (2, 10355660), (4, 5177830), (5, 4142264), (7, 2958760), (8, 2588915), (10, 2071132), (14, 1479380), (20, 1035566), (28, 739690), (35, 591752), (40, 517783), (49, 422680), (56, 369845), (70, 295876), (98, 211340), (140, 147938), (196, 105670), (245, 84536), (280, 73969), (392, 52835), (490, 42268), (980, 21134), (1960, 10567)]