20134180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1289}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 26677340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1289, 1420, 1562, 2578, 3124, 3905, 5156, 6445, 7810, 12890, 14179, 15620, 25780, 28358, 56716, 70895, 91519, 141790, 183038, 283580, 366076, 457595, 915190, 1006709, 1830380, 2013418, 4026836, 5033545, 10067090, 20134180]

約数ペア:

[(1, 20134180), (2, 10067090), (4, 5033545), (5, 4026836), (10, 2013418), (11, 1830380), (20, 1006709), (22, 915190), (44, 457595), (55, 366076), (71, 283580), (110, 183038), (142, 141790), (220, 91519), (284, 70895), (355, 56716), (710, 28358), (781, 25780), (1289, 15620), (1420, 14179), (1562, 12890), (2578, 7810), (3124, 6445), (3905, 5156)]