13903220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9791}}^1$

素因数の和:9871

約数の個数: 24

約数和(自身を含む): 29611008

約数和(自身を除く): 15707788

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 9791, 19582, 39164, 48955, 97910, 195820, 695161, 1390322, 2780644, 3475805, 6951610, 13903220]

約数ペア:

[(1, 13903220), (2, 6951610), (4, 3475805), (5, 2780644), (10, 1390322), (20, 695161), (71, 195820), (142, 97910), (284, 48955), (355, 39164), (710, 19582), (1420, 9791)]