640968660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4729}}^1$

素因数の和:4998

約数の個数: 96

約数和(自身を含む): 2002492800

約数和(自身を除く): 1361524140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 251, 270, 502, 540, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 4729, 5020, 6777, 7530, 9036, 9458, 11295, 13554, 14187, 15060, 18916, 22590, 23645, 27108, 28374, 33885, 42561, 45180, 47290, 56748, 67770, 70935, 85122, 94580, 127683, 135540, 141870, 170244, 212805, 255366, 283740, 425610, 510732, 638415, 851220, 1186979, 1276830, 2373958, 2553660, 3560937, 4747916, 5934895, 7121874, 10682811, 11869790, 14243748, 17804685, 21365622, 23739580, 32048433, 35609370, 42731244, 53414055, 64096866, 71218740, 106828110, 128193732, 160242165, 213656220, 320484330, 640968660]

約数ペア:

[(1, 640968660), (2, 320484330), (3, 213656220), (4, 160242165), (5, 128193732), (6, 106828110), (9, 71218740), (10, 64096866), (12, 53414055), (15, 42731244), (18, 35609370), (20, 32048433), (27, 23739580), (30, 21365622), (36, 17804685), (45, 14243748), (54, 11869790), (60, 10682811), (90, 7121874), (108, 5934895), (135, 4747916), (180, 3560937), (251, 2553660), (270, 2373958), (502, 1276830), (540, 1186979), (753, 851220), (1004, 638415), (1255, 510732), (1506, 425610), (2259, 283740), (2510, 255366), (3012, 212805), (3765, 170244), (4518, 141870), (4729, 135540), (5020, 127683), (6777, 94580), (7530, 85122), (9036, 70935), (9458, 67770), (11295, 56748), (13554, 47290), (14187, 45180), (15060, 42561), (18916, 33885), (22590, 28374), (23645, 27108)]