157428740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2671}}^1$

素因数の和:3108

約数の個数: 48

約数和(自身を含む): 378868224

約数和(自身を除く): 221439484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 842, 1684, 2105, 2671, 2947, 4210, 5342, 5894, 8420, 10684, 11788, 13355, 14735, 18697, 26710, 29470, 37394, 53420, 58940, 74788, 93485, 186970, 373940, 1124491, 2248982, 4497964, 5622455, 7871437, 11244910, 15742874, 22489820, 31485748, 39357185, 78714370, 157428740]

約数ペア:

[(1, 157428740), (2, 78714370), (4, 39357185), (5, 31485748), (7, 22489820), (10, 15742874), (14, 11244910), (20, 7871437), (28, 5622455), (35, 4497964), (70, 2248982), (140, 1124491), (421, 373940), (842, 186970), (1684, 93485), (2105, 74788), (2671, 58940), (2947, 53420), (4210, 37394), (5342, 29470), (5894, 26710), (8420, 18697), (10684, 14735), (11788, 13355)]