20654432

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 22310560

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 94, 124, 188, 248, 376, 443, 496, 752, 886, 992, 1457, 1504, 1772, 2914, 3544, 5828, 7088, 11656, 13733, 14176, 20821, 23312, 27466, 41642, 46624, 54932, 83284, 109864, 166568, 219728, 333136, 439456, 645451, 666272, 1290902, 2581804, 5163608, 10327216, 20654432]

約数ペア:

[(1, 20654432), (2, 10327216), (4, 5163608), (8, 2581804), (16, 1290902), (31, 666272), (32, 645451), (47, 439456), (62, 333136), (94, 219728), (124, 166568), (188, 109864), (248, 83284), (376, 54932), (443, 46624), (496, 41642), (752, 27466), (886, 23312), (992, 20821), (1457, 14176), (1504, 13733), (1772, 11656), (2914, 7088), (3544, 5828)]