81849020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12829}}^1$

素因数の和:12878

約数の個数: 48

約数和(自身を含む): 193989600

約数和(自身を除く): 112140580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 6380, 12829, 25658, 51316, 64145, 128290, 141119, 256580, 282238, 372041, 564476, 705595, 744082, 1411190, 1488164, 1860205, 2822380, 3720410, 4092451, 7440820, 8184902, 16369804, 20462255, 40924510, 81849020]

約数ペア:

[(1, 81849020), (2, 40924510), (4, 20462255), (5, 16369804), (10, 8184902), (11, 7440820), (20, 4092451), (22, 3720410), (29, 2822380), (44, 1860205), (55, 1488164), (58, 1411190), (110, 744082), (116, 705595), (145, 564476), (220, 372041), (290, 282238), (319, 256580), (580, 141119), (638, 128290), (1276, 64145), (1595, 51316), (3190, 25658), (6380, 12829)]