20624688

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 180

約数和(自身を含む): 69831840

約数和(自身を除く): 49207152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 37, 42, 48, 49, 56, 63, 72, 74, 79, 84, 98, 111, 112, 126, 144, 147, 148, 158, 168, 196, 222, 237, 252, 259, 294, 296, 316, 333, 336, 392, 441, 444, 474, 504, 518, 553, 588, 592, 632, 666, 711, 777, 784, 882, 888, 948, 1008, 1036, 1106, 1176, 1264, 1332, 1422, 1554, 1659, 1764, 1776, 1813, 1896, 2072, 2212, 2331, 2352, 2664, 2844, 2923, 3108, 3318, 3528, 3626, 3792, 3871, 4144, 4424, 4662, 4977, 5328, 5439, 5688, 5846, 6216, 6636, 7056, 7252, 7742, 8769, 8848, 9324, 9954, 10878, 11376, 11613, 11692, 12432, 13272, 14504, 15484, 16317, 17538, 18648, 19908, 20461, 21756, 23226, 23384, 26307, 26544, 29008, 30968, 32634, 34839, 35076, 37296, 39816, 40922, 43512, 46452, 46768, 52614, 61383, 61936, 65268, 69678, 70152, 79632, 81844, 87024, 92904, 105228, 122766, 130536, 139356, 140304, 143227, 163688, 184149, 185808, 210456, 245532, 261072, 278712, 286454, 327376, 368298, 420912, 429681, 491064, 557424, 572908, 736596, 859362, 982128, 1145816, 1289043, 1473192, 1718724, 2291632, 2578086, 2946384, 3437448, 5156172, 6874896, 10312344, 20624688]

約数ペア:

[(1, 20624688), (2, 10312344), (3, 6874896), (4, 5156172), (6, 3437448), (7, 2946384), (8, 2578086), (9, 2291632), (12, 1718724), (14, 1473192), (16, 1289043), (18, 1145816), (21, 982128), (24, 859362), (28, 736596), (36, 572908), (37, 557424), (42, 491064), (48, 429681), (49, 420912), (56, 368298), (63, 327376), (72, 286454), (74, 278712), (79, 261072), (84, 245532), (98, 210456), (111, 185808), (112, 184149), (126, 163688), (144, 143227), (147, 140304), (148, 139356), (158, 130536), (168, 122766), (196, 105228), (222, 92904), (237, 87024), (252, 81844), (259, 79632), (294, 70152), (296, 69678), (316, 65268), (333, 61936), (336, 61383), (392, 52614), (441, 46768), (444, 46452), (474, 43512), (504, 40922), (518, 39816), (553, 37296), (588, 35076), (592, 34839), (632, 32634), (666, 30968), (711, 29008), (777, 26544), (784, 26307), (882, 23384), (888, 23226), (948, 21756), (1008, 20461), (1036, 19908), (1106, 18648), (1176, 17538), (1264, 16317), (1332, 15484), (1422, 14504), (1554, 13272), (1659, 12432), (1764, 11692), (1776, 11613), (1813, 11376), (1896, 10878), (2072, 9954), (2212, 9324), (2331, 8848), (2352, 8769), (2664, 7742), (2844, 7252), (2923, 7056), (3108, 6636), (3318, 6216), (3528, 5846), (3626, 5688), (3792, 5439), (3871, 5328), (4144, 4977), (4424, 4662)]