178427628

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:527

約数の個数: 72

約数和(自身を含む): 459098640

約数和(自身を除く): 280671012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 181, 197, 278, 362, 394, 417, 543, 556, 591, 724, 788, 834, 1086, 1182, 1251, 1629, 1668, 1773, 2172, 2364, 2502, 3258, 3546, 5004, 6516, 7092, 25159, 27383, 35657, 50318, 54766, 71314, 75477, 82149, 100636, 106971, 109532, 142628, 150954, 164298, 213942, 226431, 246447, 301908, 320913, 328596, 427884, 452862, 492894, 641826, 905724, 985788, 1283652, 4956323, 9912646, 14868969, 19825292, 29737938, 44606907, 59475876, 89213814, 178427628]

約数ペア:

[(1, 178427628), (2, 89213814), (3, 59475876), (4, 44606907), (6, 29737938), (9, 19825292), (12, 14868969), (18, 9912646), (36, 4956323), (139, 1283652), (181, 985788), (197, 905724), (278, 641826), (362, 492894), (394, 452862), (417, 427884), (543, 328596), (556, 320913), (591, 301908), (724, 246447), (788, 226431), (834, 213942), (1086, 164298), (1182, 150954), (1251, 142628), (1629, 109532), (1668, 106971), (1773, 100636), (2172, 82149), (2364, 75477), (2502, 71314), (3258, 54766), (3546, 50318), (5004, 35657), (6516, 27383), (7092, 25159)]