28781276

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8807}}^1$

素因数の和:8873

約数の個数: 24

約数和(自身を含む): 54257280

約数和(自身を除く): 25476004

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 8807, 17614, 35228, 167333, 334666, 378701, 669332, 757402, 1514804, 7195319, 14390638, 28781276]

約数ペア:

[(1, 28781276), (2, 14390638), (4, 7195319), (19, 1514804), (38, 757402), (43, 669332), (76, 378701), (86, 334666), (172, 167333), (817, 35228), (1634, 17614), (3268, 8807)]