199809320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{929}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 475416000

約数和(自身を除く): 275606680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 283, 380, 566, 760, 929, 1132, 1415, 1858, 2264, 2830, 3716, 4645, 5377, 5660, 7432, 9290, 10754, 11320, 17651, 18580, 21508, 26885, 35302, 37160, 43016, 53770, 70604, 88255, 107540, 141208, 176510, 215080, 262907, 353020, 525814, 706040, 1051628, 1314535, 2103256, 2629070, 4995233, 5258140, 9990466, 10516280, 19980932, 24976165, 39961864, 49952330, 99904660, 199809320]

約数ペア:

[(1, 199809320), (2, 99904660), (4, 49952330), (5, 39961864), (8, 24976165), (10, 19980932), (19, 10516280), (20, 9990466), (38, 5258140), (40, 4995233), (76, 2629070), (95, 2103256), (152, 1314535), (190, 1051628), (283, 706040), (380, 525814), (566, 353020), (760, 262907), (929, 215080), (1132, 176510), (1415, 141208), (1858, 107540), (2264, 88255), (2830, 70604), (3716, 53770), (4645, 43016), (5377, 37160), (5660, 35302), (7432, 26885), (9290, 21508), (10754, 18580), (11320, 17651)]