789580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 1876896

約数和(自身を除く): 1087316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 97, 110, 148, 185, 194, 220, 370, 388, 407, 485, 740, 814, 970, 1067, 1628, 1940, 2035, 2134, 3589, 4070, 4268, 5335, 7178, 8140, 10670, 14356, 17945, 21340, 35890, 39479, 71780, 78958, 157916, 197395, 394790, 789580]

約数ペア:

[(1, 789580), (2, 394790), (4, 197395), (5, 157916), (10, 78958), (11, 71780), (20, 39479), (22, 35890), (37, 21340), (44, 17945), (55, 14356), (74, 10670), (97, 8140), (110, 7178), (148, 5335), (185, 4268), (194, 4070), (220, 3589), (370, 2134), (388, 2035), (407, 1940), (485, 1628), (740, 1067), (814, 970)]