20652848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1657}}^1$

素因数の和:1725

約数の個数: 40

約数和(自身を含む): 43174320

約数和(自身を除く): 22521472

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1657, 3116, 3314, 6232, 6628, 12464, 13256, 26512, 31483, 62966, 67937, 125932, 135874, 251864, 271748, 503728, 543496, 1086992, 1290803, 2581606, 5163212, 10326424, 20652848]

約数ペア:

[(1, 20652848), (2, 10326424), (4, 5163212), (8, 2581606), (16, 1290803), (19, 1086992), (38, 543496), (41, 503728), (76, 271748), (82, 251864), (152, 135874), (164, 125932), (304, 67937), (328, 62966), (656, 31483), (779, 26512), (1558, 13256), (1657, 12464), (3116, 6628), (3314, 6232)]