15496740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{251}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 55036800

約数和(自身を除く): 39540060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 251, 252, 294, 315, 343, 420, 441, 490, 502, 588, 630, 686, 735, 753, 882, 980, 1004, 1029, 1255, 1260, 1372, 1470, 1506, 1715, 1757, 1764, 2058, 2205, 2259, 2510, 2940, 3012, 3087, 3430, 3514, 3765, 4116, 4410, 4518, 5020, 5145, 5271, 6174, 6860, 7028, 7530, 8785, 8820, 9036, 10290, 10542, 11295, 12299, 12348, 15060, 15435, 15813, 17570, 20580, 21084, 22590, 24598, 26355, 30870, 31626, 35140, 36897, 45180, 49196, 52710, 61495, 61740, 63252, 73794, 79065, 86093, 105420, 110691, 122990, 147588, 158130, 172186, 184485, 221382, 245980, 258279, 316260, 344372, 368970, 430465, 442764, 516558, 553455, 737940, 774837, 860930, 1033116, 1106910, 1291395, 1549674, 1721860, 2213820, 2582790, 3099348, 3874185, 5165580, 7748370, 15496740]

約数ペア:

[(1, 15496740), (2, 7748370), (3, 5165580), (4, 3874185), (5, 3099348), (6, 2582790), (7, 2213820), (9, 1721860), (10, 1549674), (12, 1291395), (14, 1106910), (15, 1033116), (18, 860930), (20, 774837), (21, 737940), (28, 553455), (30, 516558), (35, 442764), (36, 430465), (42, 368970), (45, 344372), (49, 316260), (60, 258279), (63, 245980), (70, 221382), (84, 184485), (90, 172186), (98, 158130), (105, 147588), (126, 122990), (140, 110691), (147, 105420), (180, 86093), (196, 79065), (210, 73794), (245, 63252), (251, 61740), (252, 61495), (294, 52710), (315, 49196), (343, 45180), (420, 36897), (441, 35140), (490, 31626), (502, 30870), (588, 26355), (630, 24598), (686, 22590), (735, 21084), (753, 20580), (882, 17570), (980, 15813), (1004, 15435), (1029, 15060), (1255, 12348), (1260, 12299), (1372, 11295), (1470, 10542), (1506, 10290), (1715, 9036), (1757, 8820), (1764, 8785), (2058, 7530), (2205, 7028), (2259, 6860), (2510, 6174), (2940, 5271), (3012, 5145), (3087, 5020), (3430, 4518), (3514, 4410), (3765, 4116)]