1285393820

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{97231}}^1$

素因数の和:97901

約数の個数: 24

約数和(自身を含む): 2703438528

約数和(自身を除く): 1418044708

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 13220, 97231, 194462, 388924, 486155, 972310, 1944620, 64269691, 128539382, 257078764, 321348455, 642696910, 1285393820]

約数ペア:

[(1, 1285393820), (2, 642696910), (4, 321348455), (5, 257078764), (10, 128539382), (20, 64269691), (661, 1944620), (1322, 972310), (2644, 486155), (3305, 388924), (6610, 194462), (13220, 97231)]