20348568

素因数分解:

$2^3\times 3^2\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 55325400

約数和(自身を除く): 34976832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 409, 691, 818, 1227, 1382, 1636, 2073, 2454, 2764, 3272, 3681, 4146, 4908, 5528, 6219, 7362, 8292, 9816, 12438, 14724, 16584, 24876, 29448, 49752, 282619, 565238, 847857, 1130476, 1695714, 2260952, 2543571, 3391428, 5087142, 6782856, 10174284, 20348568]

約数ペア:

[(1, 20348568), (2, 10174284), (3, 6782856), (4, 5087142), (6, 3391428), (8, 2543571), (9, 2260952), (12, 1695714), (18, 1130476), (24, 847857), (36, 565238), (72, 282619), (409, 49752), (691, 29448), (818, 24876), (1227, 16584), (1382, 14724), (1636, 12438), (2073, 9816), (2454, 8292), (2764, 7362), (3272, 6219), (3681, 5528), (4146, 4908)]