8369480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 21876480

約数和(自身を除く): 13507000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 421, 497, 568, 710, 842, 994, 1420, 1684, 1988, 2105, 2485, 2840, 2947, 3368, 3976, 4210, 4970, 5894, 8420, 9940, 11788, 14735, 16840, 19880, 23576, 29470, 29891, 58940, 59782, 117880, 119564, 149455, 209237, 239128, 298910, 418474, 597820, 836948, 1046185, 1195640, 1673896, 2092370, 4184740, 8369480]

約数ペア:

[(1, 8369480), (2, 4184740), (4, 2092370), (5, 1673896), (7, 1195640), (8, 1046185), (10, 836948), (14, 597820), (20, 418474), (28, 298910), (35, 239128), (40, 209237), (56, 149455), (70, 119564), (71, 117880), (140, 59782), (142, 58940), (280, 29891), (284, 29470), (355, 23576), (421, 19880), (497, 16840), (568, 14735), (710, 11788), (842, 9940), (994, 8420), (1420, 5894), (1684, 4970), (1988, 4210), (2105, 3976), (2485, 3368), (2840, 2947)]