221865896

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{463}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 489984000

約数和(自身を除く): 268118104

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 199, 301, 344, 398, 463, 602, 796, 926, 1204, 1393, 1592, 1852, 2408, 2786, 3241, 3704, 5572, 6482, 8557, 11144, 12964, 17114, 19909, 25928, 34228, 39818, 59899, 68456, 79636, 92137, 119798, 139363, 159272, 184274, 239596, 278726, 368548, 479192, 557452, 644959, 737096, 1114904, 1289918, 2579836, 3961891, 5159672, 7923782, 15847564, 27733237, 31695128, 55466474, 110932948, 221865896]

約数ペア:

[(1, 221865896), (2, 110932948), (4, 55466474), (7, 31695128), (8, 27733237), (14, 15847564), (28, 7923782), (43, 5159672), (56, 3961891), (86, 2579836), (172, 1289918), (199, 1114904), (301, 737096), (344, 644959), (398, 557452), (463, 479192), (602, 368548), (796, 278726), (926, 239596), (1204, 184274), (1393, 159272), (1592, 139363), (1852, 119798), (2408, 92137), (2786, 79636), (3241, 68456), (3704, 59899), (5572, 39818), (6482, 34228), (8557, 25928), (11144, 19909), (12964, 17114)]