28780444

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1907}}^1$

素因数の和:1943

約数の個数: 48

約数和(自身を含む): 64108800

約数和(自身を除く): 35328356

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 343, 539, 686, 1078, 1372, 1907, 2156, 3773, 3814, 7546, 7628, 13349, 15092, 20977, 26698, 41954, 53396, 83908, 93443, 146839, 186886, 293678, 373772, 587356, 654101, 1027873, 1308202, 2055746, 2616404, 4111492, 7195111, 14390222, 28780444]

約数ペア:

[(1, 28780444), (2, 14390222), (4, 7195111), (7, 4111492), (11, 2616404), (14, 2055746), (22, 1308202), (28, 1027873), (44, 654101), (49, 587356), (77, 373772), (98, 293678), (154, 186886), (196, 146839), (308, 93443), (343, 83908), (539, 53396), (686, 41954), (1078, 26698), (1372, 20977), (1907, 15092), (2156, 13349), (3773, 7628), (3814, 7546)]