20990664

素因数分解:

$2^3\times 3^4\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1164

約数の個数: 80

約数和(自身を含む): 60875100

約数和(自身を除く): 39884436

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 54, 58, 72, 81, 87, 108, 116, 162, 174, 216, 232, 261, 324, 348, 522, 648, 696, 783, 1044, 1117, 1566, 2088, 2234, 2349, 3132, 3351, 4468, 4698, 6264, 6702, 8936, 9396, 10053, 13404, 18792, 20106, 26808, 30159, 32393, 40212, 60318, 64786, 80424, 90477, 97179, 120636, 129572, 180954, 194358, 241272, 259144, 291537, 361908, 388716, 583074, 723816, 777432, 874611, 1166148, 1749222, 2332296, 2623833, 3498444, 5247666, 6996888, 10495332, 20990664]

約数ペア:

[(1, 20990664), (2, 10495332), (3, 6996888), (4, 5247666), (6, 3498444), (8, 2623833), (9, 2332296), (12, 1749222), (18, 1166148), (24, 874611), (27, 777432), (29, 723816), (36, 583074), (54, 388716), (58, 361908), (72, 291537), (81, 259144), (87, 241272), (108, 194358), (116, 180954), (162, 129572), (174, 120636), (216, 97179), (232, 90477), (261, 80424), (324, 64786), (348, 60318), (522, 40212), (648, 32393), (696, 30159), (783, 26808), (1044, 20106), (1117, 18792), (1566, 13404), (2088, 10053), (2234, 9396), (2349, 8936), (3132, 6702), (3351, 6264), (4468, 4698)]