20725776

素因数分解:

$2^4\times 3^2\times {\mathrm{163}}^1\times {\mathrm{883}}^1$

素因数の和:1060

約数の個数: 60

約数和(自身を含む): 58425328

約数和(自身を除く): 37699552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 163, 326, 489, 652, 883, 978, 1304, 1467, 1766, 1956, 2608, 2649, 2934, 3532, 3912, 5298, 5868, 7064, 7824, 7947, 10596, 11736, 14128, 15894, 21192, 23472, 31788, 42384, 63576, 127152, 143929, 287858, 431787, 575716, 863574, 1151432, 1295361, 1727148, 2302864, 2590722, 3454296, 5181444, 6908592, 10362888, 20725776]

約数ペア:

[(1, 20725776), (2, 10362888), (3, 6908592), (4, 5181444), (6, 3454296), (8, 2590722), (9, 2302864), (12, 1727148), (16, 1295361), (18, 1151432), (24, 863574), (36, 575716), (48, 431787), (72, 287858), (144, 143929), (163, 127152), (326, 63576), (489, 42384), (652, 31788), (883, 23472), (978, 21192), (1304, 15894), (1467, 14128), (1766, 11736), (1956, 10596), (2608, 7947), (2649, 7824), (2934, 7064), (3532, 5868), (3912, 5298)]