891652900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{1069}}^1$

素因数の和:1541

約数の個数: 72

約数和(自身を含む): 2043272000

約数和(自身を除く): 1151619100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 439, 475, 878, 950, 1069, 1756, 1900, 2138, 2195, 4276, 4390, 5345, 8341, 8780, 10690, 10975, 16682, 20311, 21380, 21950, 26725, 33364, 40622, 41705, 43900, 53450, 81244, 83410, 101555, 106900, 166820, 203110, 208525, 406220, 417050, 469291, 507775, 834100, 938582, 1015550, 1877164, 2031100, 2346455, 4692910, 8916529, 9385820, 11732275, 17833058, 23464550, 35666116, 44582645, 46929100, 89165290, 178330580, 222913225, 445826450, 891652900]

約数ペア:

[(1, 891652900), (2, 445826450), (4, 222913225), (5, 178330580), (10, 89165290), (19, 46929100), (20, 44582645), (25, 35666116), (38, 23464550), (50, 17833058), (76, 11732275), (95, 9385820), (100, 8916529), (190, 4692910), (380, 2346455), (439, 2031100), (475, 1877164), (878, 1015550), (950, 938582), (1069, 834100), (1756, 507775), (1900, 469291), (2138, 417050), (2195, 406220), (4276, 208525), (4390, 203110), (5345, 166820), (8341, 106900), (8780, 101555), (10690, 83410), (10975, 81244), (16682, 53450), (20311, 43900), (21380, 41705), (21950, 40622), (26725, 33364)]