28947275

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3121}}^1$

素因数の和:3191

約数の個数: 24

約数和(自身を含む): 41809824

約数和(自身を除く): 12862549

約数列:

[1, 5, 7, 25, 35, 53, 175, 265, 371, 1325, 1855, 3121, 9275, 15605, 21847, 78025, 109235, 165413, 546175, 827065, 1157891, 4135325, 5789455, 28947275]

約数ペア:

[(1, 28947275), (5, 5789455), (7, 4135325), (25, 1157891), (35, 827065), (53, 546175), (175, 165413), (265, 109235), (371, 78025), (1325, 21847), (1855, 15605), (3121, 9275)]