20013656

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 41306760

約数和(自身を除く): 21293104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 131, 169, 226, 262, 338, 452, 524, 676, 904, 1048, 1352, 1469, 1703, 2938, 3406, 5876, 6812, 11752, 13624, 14803, 19097, 22139, 29606, 38194, 44278, 59212, 76388, 88556, 118424, 152776, 177112, 192439, 384878, 769756, 1539512, 2501707, 5003414, 10006828, 20013656]

約数ペア:

[(1, 20013656), (2, 10006828), (4, 5003414), (8, 2501707), (13, 1539512), (26, 769756), (52, 384878), (104, 192439), (113, 177112), (131, 152776), (169, 118424), (226, 88556), (262, 76388), (338, 59212), (452, 44278), (524, 38194), (676, 29606), (904, 22139), (1048, 19097), (1352, 14803), (1469, 13624), (1703, 11752), (2938, 6812), (3406, 5876)]