177680780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3413}}^1$

素因数の和:3578

約数の個数: 48

約数和(自身を含む): 395750880

約数和(自身を除く): 218070100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 380, 548, 685, 1370, 2603, 2740, 3413, 5206, 6826, 10412, 13015, 13652, 17065, 26030, 34130, 52060, 64847, 68260, 129694, 259388, 324235, 467581, 648470, 935162, 1296940, 1870324, 2337905, 4675810, 8884039, 9351620, 17768078, 35536156, 44420195, 88840390, 177680780]

約数ペア:

[(1, 177680780), (2, 88840390), (4, 44420195), (5, 35536156), (10, 17768078), (19, 9351620), (20, 8884039), (38, 4675810), (76, 2337905), (95, 1870324), (137, 1296940), (190, 935162), (274, 648470), (380, 467581), (548, 324235), (685, 259388), (1370, 129694), (2603, 68260), (2740, 64847), (3413, 52060), (5206, 34130), (6826, 26030), (10412, 17065), (13015, 13652)]