212988725

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 272363520

約数和(自身を除く): 59374795

約数列:

[1, 5, 25, 47, 109, 235, 545, 1175, 1663, 2725, 5123, 8315, 25615, 41575, 78161, 128075, 181267, 390805, 906335, 1954025, 4531675, 8519549, 42597745, 212988725]

約数ペア:

[(1, 212988725), (5, 42597745), (25, 8519549), (47, 4531675), (109, 1954025), (235, 906335), (545, 390805), (1175, 181267), (1663, 128075), (2725, 78161), (5123, 41575), (8315, 25615)]