30868840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 72135360

約数和(自身を除く): 41266520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 131, 137, 172, 215, 262, 274, 344, 430, 524, 548, 655, 685, 860, 1048, 1096, 1310, 1370, 1720, 2620, 2740, 5240, 5480, 5633, 5891, 11266, 11782, 17947, 22532, 23564, 28165, 29455, 35894, 45064, 47128, 56330, 58910, 71788, 89735, 112660, 117820, 143576, 179470, 225320, 235640, 358940, 717880, 771721, 1543442, 3086884, 3858605, 6173768, 7717210, 15434420, 30868840]

約数ペア:

[(1, 30868840), (2, 15434420), (4, 7717210), (5, 6173768), (8, 3858605), (10, 3086884), (20, 1543442), (40, 771721), (43, 717880), (86, 358940), (131, 235640), (137, 225320), (172, 179470), (215, 143576), (262, 117820), (274, 112660), (344, 89735), (430, 71788), (524, 58910), (548, 56330), (655, 47128), (685, 45064), (860, 35894), (1048, 29455), (1096, 28165), (1310, 23564), (1370, 22532), (1720, 17947), (2620, 11782), (2740, 11266), (5240, 5891), (5480, 5633)]