20141990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2668

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 19982170

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2579, 3905, 5158, 7810, 12895, 25790, 28369, 56738, 141845, 183109, 283690, 366218, 915545, 1831090, 2014199, 4028398, 10070995, 20141990]

約数ペア:

[(1, 20141990), (2, 10070995), (5, 4028398), (10, 2014199), (11, 1831090), (22, 915545), (55, 366218), (71, 283690), (110, 183109), (142, 141845), (355, 56738), (710, 28369), (781, 25790), (1562, 12895), (2579, 7810), (3905, 5158)]