20375516

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1091}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23653924

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 46, 58, 92, 116, 161, 203, 322, 406, 644, 667, 812, 1091, 1334, 2182, 2668, 4364, 4669, 7637, 9338, 15274, 18676, 25093, 30548, 31639, 50186, 63278, 100372, 126556, 175651, 221473, 351302, 442946, 702604, 727697, 885892, 1455394, 2910788, 5093879, 10187758, 20375516]

約数ペア:

[(1, 20375516), (2, 10187758), (4, 5093879), (7, 2910788), (14, 1455394), (23, 885892), (28, 727697), (29, 702604), (46, 442946), (58, 351302), (92, 221473), (116, 175651), (161, 126556), (203, 100372), (322, 63278), (406, 50186), (644, 31639), (667, 30548), (812, 25093), (1091, 18676), (1334, 15274), (2182, 9338), (2668, 7637), (4364, 4669)]