20998560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 192

約数和(自身を含む): 74680704

約数和(自身を除く): 53682144

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 41, 44, 48, 55, 60, 66, 80, 82, 88, 96, 97, 110, 120, 123, 132, 160, 164, 165, 176, 194, 205, 220, 240, 246, 264, 291, 328, 330, 352, 388, 410, 440, 451, 480, 485, 492, 528, 582, 615, 656, 660, 776, 820, 880, 902, 970, 984, 1056, 1067, 1164, 1230, 1312, 1320, 1353, 1455, 1552, 1640, 1760, 1804, 1940, 1968, 2134, 2255, 2328, 2460, 2640, 2706, 2910, 3104, 3201, 3280, 3608, 3880, 3936, 3977, 4268, 4510, 4656, 4920, 5280, 5335, 5412, 5820, 6402, 6560, 6765, 7216, 7760, 7954, 8536, 9020, 9312, 9840, 10670, 10824, 11640, 11931, 12804, 13530, 14432, 15520, 15908, 16005, 17072, 18040, 19680, 19885, 21340, 21648, 23280, 23862, 25608, 27060, 31816, 32010, 34144, 36080, 39770, 42680, 43296, 43747, 46560, 47724, 51216, 54120, 59655, 63632, 64020, 72160, 79540, 85360, 87494, 95448, 102432, 108240, 119310, 127264, 128040, 131241, 159080, 170720, 174988, 190896, 216480, 218735, 238620, 256080, 262482, 318160, 349976, 381792, 437470, 477240, 512160, 524964, 636320, 656205, 699952, 874940, 954480, 1049928, 1312410, 1399904, 1749880, 1908960, 2099856, 2624820, 3499760, 4199712, 5249640, 6999520, 10499280, 20998560]

約数ペア:

[(1, 20998560), (2, 10499280), (3, 6999520), (4, 5249640), (5, 4199712), (6, 3499760), (8, 2624820), (10, 2099856), (11, 1908960), (12, 1749880), (15, 1399904), (16, 1312410), (20, 1049928), (22, 954480), (24, 874940), (30, 699952), (32, 656205), (33, 636320), (40, 524964), (41, 512160), (44, 477240), (48, 437470), (55, 381792), (60, 349976), (66, 318160), (80, 262482), (82, 256080), (88, 238620), (96, 218735), (97, 216480), (110, 190896), (120, 174988), (123, 170720), (132, 159080), (160, 131241), (164, 128040), (165, 127264), (176, 119310), (194, 108240), (205, 102432), (220, 95448), (240, 87494), (246, 85360), (264, 79540), (291, 72160), (328, 64020), (330, 63632), (352, 59655), (388, 54120), (410, 51216), (440, 47724), (451, 46560), (480, 43747), (485, 43296), (492, 42680), (528, 39770), (582, 36080), (615, 34144), (656, 32010), (660, 31816), (776, 27060), (820, 25608), (880, 23862), (902, 23280), (970, 21648), (984, 21340), (1056, 19885), (1067, 19680), (1164, 18040), (1230, 17072), (1312, 16005), (1320, 15908), (1353, 15520), (1455, 14432), (1552, 13530), (1640, 12804), (1760, 11931), (1804, 11640), (1940, 10824), (1968, 10670), (2134, 9840), (2255, 9312), (2328, 9020), (2460, 8536), (2640, 7954), (2706, 7760), (2910, 7216), (3104, 6765), (3201, 6560), (3280, 6402), (3608, 5820), (3880, 5412), (3936, 5335), (3977, 5280), (4268, 4920), (4510, 4656)]