201216725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1801}}^1$

素因数の和:1961

約数の個数: 24

約数和(自身を含む): 258082440

約数和(自身を除く): 56865715

約数列:

[1, 5, 25, 41, 109, 205, 545, 1025, 1801, 2725, 4469, 9005, 22345, 45025, 73841, 111725, 196309, 369205, 981545, 1846025, 4907725, 8048669, 40243345, 201216725]

約数ペア:

[(1, 201216725), (5, 40243345), (25, 8048669), (41, 4907725), (109, 1846025), (205, 981545), (545, 369205), (1025, 196309), (1801, 111725), (2725, 73841), (4469, 45025), (9005, 22345)]