158161280

素因数分解:

$2^7\times 5^1\times {\mathrm{421}}^1\times {\mathrm{587}}^1$

素因数の和:1027

約数の個数: 64

約数和(自身を含む): 379648080

約数和(自身を除く): 221486800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 421, 587, 640, 842, 1174, 1684, 2105, 2348, 2935, 3368, 4210, 4696, 5870, 6736, 8420, 9392, 11740, 13472, 16840, 18784, 23480, 26944, 33680, 37568, 46960, 53888, 67360, 75136, 93920, 134720, 187840, 247127, 269440, 375680, 494254, 988508, 1235635, 1977016, 2471270, 3954032, 4942540, 7908064, 9885080, 15816128, 19770160, 31632256, 39540320, 79080640, 158161280]

約数ペア:

[(1, 158161280), (2, 79080640), (4, 39540320), (5, 31632256), (8, 19770160), (10, 15816128), (16, 9885080), (20, 7908064), (32, 4942540), (40, 3954032), (64, 2471270), (80, 1977016), (128, 1235635), (160, 988508), (320, 494254), (421, 375680), (587, 269440), (640, 247127), (842, 187840), (1174, 134720), (1684, 93920), (2105, 75136), (2348, 67360), (2935, 53888), (3368, 46960), (4210, 37568), (4696, 33680), (5870, 26944), (6736, 23480), (8420, 18784), (9392, 16840), (11740, 13472)]