311373920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:509

約数の個数: 192

約数和(自身を含む): 894136320

約数和(自身を除く): 582762400

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 32, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 124, 130, 143, 155, 160, 176, 208, 220, 248, 260, 286, 310, 341, 352, 403, 416, 439, 440, 496, 520, 572, 620, 682, 715, 806, 878, 880, 992, 1040, 1144, 1240, 1364, 1430, 1612, 1705, 1756, 1760, 2015, 2080, 2195, 2288, 2480, 2728, 2860, 3224, 3410, 3512, 4030, 4390, 4433, 4576, 4829, 4960, 5456, 5707, 5720, 6448, 6820, 7024, 8060, 8780, 8866, 9658, 10912, 11414, 11440, 12896, 13609, 13640, 14048, 16120, 17560, 17732, 19316, 22165, 22828, 22880, 24145, 27218, 27280, 28535, 32240, 35120, 35464, 38632, 44330, 45656, 48290, 54436, 54560, 57070, 62777, 64480, 68045, 70240, 70928, 77264, 88660, 91312, 96580, 108872, 114140, 125554, 136090, 141856, 149699, 154528, 176917, 177320, 182624, 193160, 217744, 228280, 251108, 272180, 299398, 313885, 353834, 354640, 386320, 435488, 456560, 502216, 544360, 598796, 627770, 707668, 709280, 748495, 772640, 884585, 913120, 1004432, 1088720, 1197592, 1255540, 1415336, 1496990, 1769170, 1946087, 2008864, 2177440, 2395184, 2511080, 2830672, 2993980, 3538340, 3892174, 4790368, 5022160, 5661344, 5987960, 7076680, 7784348, 9730435, 10044320, 11975920, 14153360, 15568696, 19460870, 23951840, 28306720, 31137392, 38921740, 62274784, 77843480, 155686960, 311373920]

約数ペア:

[(1, 311373920), (2, 155686960), (4, 77843480), (5, 62274784), (8, 38921740), (10, 31137392), (11, 28306720), (13, 23951840), (16, 19460870), (20, 15568696), (22, 14153360), (26, 11975920), (31, 10044320), (32, 9730435), (40, 7784348), (44, 7076680), (52, 5987960), (55, 5661344), (62, 5022160), (65, 4790368), (80, 3892174), (88, 3538340), (104, 2993980), (110, 2830672), (124, 2511080), (130, 2395184), (143, 2177440), (155, 2008864), (160, 1946087), (176, 1769170), (208, 1496990), (220, 1415336), (248, 1255540), (260, 1197592), (286, 1088720), (310, 1004432), (341, 913120), (352, 884585), (403, 772640), (416, 748495), (439, 709280), (440, 707668), (496, 627770), (520, 598796), (572, 544360), (620, 502216), (682, 456560), (715, 435488), (806, 386320), (878, 354640), (880, 353834), (992, 313885), (1040, 299398), (1144, 272180), (1240, 251108), (1364, 228280), (1430, 217744), (1612, 193160), (1705, 182624), (1756, 177320), (1760, 176917), (2015, 154528), (2080, 149699), (2195, 141856), (2288, 136090), (2480, 125554), (2728, 114140), (2860, 108872), (3224, 96580), (3410, 91312), (3512, 88660), (4030, 77264), (4390, 70928), (4433, 70240), (4576, 68045), (4829, 64480), (4960, 62777), (5456, 57070), (5707, 54560), (5720, 54436), (6448, 48290), (6820, 45656), (7024, 44330), (8060, 38632), (8780, 35464), (8866, 35120), (9658, 32240), (10912, 28535), (11414, 27280), (11440, 27218), (12896, 24145), (13609, 22880), (13640, 22828), (14048, 22165), (16120, 19316), (17560, 17732)]