20985264

素因数分解:

$2^4\times 3^3\times {\mathrm{31}}^1\times {\mathrm{1567}}^1$

素因数の和:1615

約数の個数: 80

約数和(自身を含む): 62218240

約数和(自身を除く): 41232976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 48, 54, 62, 72, 93, 108, 124, 144, 186, 216, 248, 279, 372, 432, 496, 558, 744, 837, 1116, 1488, 1567, 1674, 2232, 3134, 3348, 4464, 4701, 6268, 6696, 9402, 12536, 13392, 14103, 18804, 25072, 28206, 37608, 42309, 48577, 56412, 75216, 84618, 97154, 112824, 145731, 169236, 194308, 225648, 291462, 338472, 388616, 437193, 582924, 676944, 777232, 874386, 1165848, 1311579, 1748772, 2331696, 2623158, 3497544, 5246316, 6995088, 10492632, 20985264]

約数ペア:

[(1, 20985264), (2, 10492632), (3, 6995088), (4, 5246316), (6, 3497544), (8, 2623158), (9, 2331696), (12, 1748772), (16, 1311579), (18, 1165848), (24, 874386), (27, 777232), (31, 676944), (36, 582924), (48, 437193), (54, 388616), (62, 338472), (72, 291462), (93, 225648), (108, 194308), (124, 169236), (144, 145731), (186, 112824), (216, 97154), (248, 84618), (279, 75216), (372, 56412), (432, 48577), (496, 42309), (558, 37608), (744, 28206), (837, 25072), (1116, 18804), (1488, 14103), (1567, 13392), (1674, 12536), (2232, 9402), (3134, 6696), (3348, 6268), (4464, 4701)]