81584680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 194400000

約数和(自身を除く): 112815320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 568, 710, 920, 1249, 1420, 1633, 2498, 2840, 3266, 4996, 6245, 6532, 8165, 9992, 12490, 13064, 16330, 24980, 28727, 32660, 49960, 57454, 65320, 88679, 114908, 143635, 177358, 229816, 287270, 354716, 443395, 574540, 709432, 886790, 1149080, 1773580, 2039617, 3547160, 4079234, 8158468, 10198085, 16316936, 20396170, 40792340, 81584680]

約数ペア:

[(1, 81584680), (2, 40792340), (4, 20396170), (5, 16316936), (8, 10198085), (10, 8158468), (20, 4079234), (23, 3547160), (40, 2039617), (46, 1773580), (71, 1149080), (92, 886790), (115, 709432), (142, 574540), (184, 443395), (230, 354716), (284, 287270), (355, 229816), (460, 177358), (568, 143635), (710, 114908), (920, 88679), (1249, 65320), (1420, 57454), (1633, 49960), (2498, 32660), (2840, 28727), (3266, 24980), (4996, 16330), (6245, 13064), (6532, 12490), (8165, 9992)]