20160848

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 40658856

約数和(自身を除く): 20498008

約数列:

[1, 2, 4, 8, 16, 41, 73, 82, 146, 164, 292, 328, 421, 584, 656, 842, 1168, 1684, 2993, 3368, 5986, 6736, 11972, 17261, 23944, 30733, 34522, 47888, 61466, 69044, 122932, 138088, 245864, 276176, 491728, 1260053, 2520106, 5040212, 10080424, 20160848]

約数ペア:

[(1, 20160848), (2, 10080424), (4, 5040212), (8, 2520106), (16, 1260053), (41, 491728), (73, 276176), (82, 245864), (146, 138088), (164, 122932), (292, 69044), (328, 61466), (421, 47888), (584, 34522), (656, 30733), (842, 23944), (1168, 17261), (1684, 11972), (2993, 6736), (3368, 5986)]