1818371212

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{4133}}^1$

素因数の和:4990

約数の個数: 48

約数和(自身を含む): 3833706240

約数和(自身を除く): 2015335028

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 827, 1654, 3308, 4133, 5789, 8266, 11578, 15713, 16532, 23156, 28931, 31426, 57862, 62852, 78527, 109991, 115724, 157054, 219982, 314108, 439964, 549689, 1099378, 2198756, 3417991, 6835982, 13671964, 23925937, 47851874, 64941829, 95703748, 129883658, 259767316, 454592803, 909185606, 1818371212]

約数ペア:

[(1, 1818371212), (2, 909185606), (4, 454592803), (7, 259767316), (14, 129883658), (19, 95703748), (28, 64941829), (38, 47851874), (76, 23925937), (133, 13671964), (266, 6835982), (532, 3417991), (827, 2198756), (1654, 1099378), (3308, 549689), (4133, 439964), (5789, 314108), (8266, 219982), (11578, 157054), (15713, 115724), (16532, 109991), (23156, 78527), (28931, 62852), (31426, 57862)]