20716557984

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{17713}}^1$

素因数の和:17891

約数の個数: 144

約数和(自身を含む): 61280803584

約数和(自身を除く): 40564245600

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 131, 144, 186, 248, 262, 279, 288, 372, 393, 496, 524, 558, 744, 786, 992, 1048, 1116, 1179, 1488, 1572, 2096, 2232, 2358, 2976, 3144, 4061, 4192, 4464, 4716, 6288, 8122, 8928, 9432, 12183, 12576, 16244, 17713, 18864, 24366, 32488, 35426, 36549, 37728, 48732, 53139, 64976, 70852, 73098, 97464, 106278, 129952, 141704, 146196, 159417, 194928, 212556, 283408, 292392, 318834, 389856, 425112, 549103, 566816, 584784, 637668, 850224, 1098206, 1169568, 1275336, 1647309, 1700448, 2196412, 2320403, 2550672, 3294618, 4392824, 4640806, 4941927, 5101344, 6589236, 6961209, 8785648, 9281612, 9883854, 13178472, 13922418, 17571296, 18563224, 19767708, 20883627, 26356944, 27844836, 37126448, 39535416, 41767254, 52713888, 55689672, 71932493, 74252896, 79070832, 83534508, 111379344, 143864986, 158141664, 167069016, 215797479, 222758688, 287729972, 334138032, 431594958, 575459944, 647392437, 668276064, 863189916, 1150919888, 1294784874, 1726379832, 2301839776, 2589569748, 3452759664, 5179139496, 6905519328, 10358278992, 20716557984]

約数ペア:

[(1, 20716557984), (2, 10358278992), (3, 6905519328), (4, 5179139496), (6, 3452759664), (8, 2589569748), (9, 2301839776), (12, 1726379832), (16, 1294784874), (18, 1150919888), (24, 863189916), (31, 668276064), (32, 647392437), (36, 575459944), (48, 431594958), (62, 334138032), (72, 287729972), (93, 222758688), (96, 215797479), (124, 167069016), (131, 158141664), (144, 143864986), (186, 111379344), (248, 83534508), (262, 79070832), (279, 74252896), (288, 71932493), (372, 55689672), (393, 52713888), (496, 41767254), (524, 39535416), (558, 37126448), (744, 27844836), (786, 26356944), (992, 20883627), (1048, 19767708), (1116, 18563224), (1179, 17571296), (1488, 13922418), (1572, 13178472), (2096, 9883854), (2232, 9281612), (2358, 8785648), (2976, 6961209), (3144, 6589236), (4061, 5101344), (4192, 4941927), (4464, 4640806), (4716, 4392824), (6288, 3294618), (8122, 2550672), (8928, 2320403), (9432, 2196412), (12183, 1700448), (12576, 1647309), (16244, 1275336), (17713, 1169568), (18864, 1098206), (24366, 850224), (32488, 637668), (35426, 584784), (36549, 566816), (37728, 549103), (48732, 425112), (53139, 389856), (64976, 318834), (70852, 292392), (73098, 283408), (97464, 212556), (106278, 194928), (129952, 159417), (141704, 146196)]