1990975

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 2920448

約数和(自身を除く): 929473

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 367, 775, 1085, 1835, 2569, 5425, 9175, 11377, 12845, 56885, 64225, 79639, 284425, 398195, 1990975]

約数ペア:

[(1, 1990975), (5, 398195), (7, 284425), (25, 79639), (31, 64225), (35, 56885), (155, 12845), (175, 11377), (217, 9175), (367, 5425), (775, 2569), (1085, 1835)]