20182178180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{246907}}^1$

素因数の和:247044

約数の個数: 48

約数和(自身を含む): 43720493376

約数和(自身を除く): 23538315196

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 335, 610, 670, 1220, 1340, 4087, 8174, 16348, 20435, 40870, 81740, 246907, 493814, 987628, 1234535, 2469070, 4938140, 15061327, 16542769, 30122654, 33085538, 60245308, 66171076, 75306635, 82713845, 150613270, 165427690, 301226540, 330855380, 1009108909, 2018217818, 4036435636, 5045544545, 10091089090, 20182178180]

約数ペア:

[(1, 20182178180), (2, 10091089090), (4, 5045544545), (5, 4036435636), (10, 2018217818), (20, 1009108909), (61, 330855380), (67, 301226540), (122, 165427690), (134, 150613270), (244, 82713845), (268, 75306635), (305, 66171076), (335, 60245308), (610, 33085538), (670, 30122654), (1220, 16542769), (1340, 15061327), (4087, 4938140), (8174, 2469070), (16348, 1234535), (20435, 987628), (40870, 493814), (81740, 246907)]