1975325

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{653}}^1$

素因数の和:685

約数の個数: 18

約数和(自身を含む): 2696442

約数和(自身を除く): 721117

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 653, 3025, 3265, 7183, 16325, 35915, 79013, 179575, 395065, 1975325]

約数ペア:

[(1, 1975325), (5, 395065), (11, 179575), (25, 79013), (55, 35915), (121, 16325), (275, 7183), (605, 3265), (653, 3025)]