2505781990

素因数分解:

$2^1\times 5^1\times {\mathrm{6269}}^1\times {\mathrm{39971}}^1$

素因数の和:46247

約数の個数: 16

約数和(自身を含む): 4511239920

約数和(自身を除く): 2005457930

約数列:

[1, 2, 5, 10, 6269, 12538, 31345, 39971, 62690, 79942, 199855, 399710, 250578199, 501156398, 1252890995, 2505781990]

約数ペア:

[(1, 2505781990), (2, 1252890995), (5, 501156398), (10, 250578199), (6269, 399710), (12538, 199855), (31345, 79942), (39971, 62690)]