31419388

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 80438400

約数和(自身を除く): 49019012

約数列:

[1, 2, 4, 7, 11, 13, 14, 19, 22, 26, 28, 38, 44, 49, 52, 59, 76, 77, 91, 98, 118, 133, 143, 154, 182, 196, 209, 236, 247, 266, 286, 308, 364, 413, 418, 494, 532, 539, 572, 637, 649, 767, 826, 836, 931, 988, 1001, 1078, 1121, 1274, 1298, 1463, 1534, 1652, 1729, 1862, 2002, 2156, 2242, 2548, 2596, 2717, 2891, 2926, 3068, 3458, 3724, 4004, 4484, 4543, 5369, 5434, 5782, 5852, 6916, 7007, 7847, 8437, 9086, 10241, 10738, 10868, 11564, 12103, 12331, 14014, 14573, 15694, 16874, 18172, 19019, 20482, 21476, 24206, 24662, 28028, 29146, 31388, 31801, 33748, 37583, 38038, 40964, 48412, 49324, 54929, 58292, 59059, 63602, 75166, 76076, 86317, 102011, 109858, 118118, 127204, 133133, 150332, 160303, 172634, 204022, 219716, 236236, 266266, 320606, 345268, 408044, 413413, 532532, 604219, 641212, 714077, 826826, 1122121, 1208438, 1428154, 1653652, 2244242, 2416876, 2856308, 4488484, 7854847, 15709694, 31419388]

約数ペア:

[(1, 31419388), (2, 15709694), (4, 7854847), (7, 4488484), (11, 2856308), (13, 2416876), (14, 2244242), (19, 1653652), (22, 1428154), (26, 1208438), (28, 1122121), (38, 826826), (44, 714077), (49, 641212), (52, 604219), (59, 532532), (76, 413413), (77, 408044), (91, 345268), (98, 320606), (118, 266266), (133, 236236), (143, 219716), (154, 204022), (182, 172634), (196, 160303), (209, 150332), (236, 133133), (247, 127204), (266, 118118), (286, 109858), (308, 102011), (364, 86317), (413, 76076), (418, 75166), (494, 63602), (532, 59059), (539, 58292), (572, 54929), (637, 49324), (649, 48412), (767, 40964), (826, 38038), (836, 37583), (931, 33748), (988, 31801), (1001, 31388), (1078, 29146), (1121, 28028), (1274, 24662), (1298, 24206), (1463, 21476), (1534, 20482), (1652, 19019), (1729, 18172), (1862, 16874), (2002, 15694), (2156, 14573), (2242, 14014), (2548, 12331), (2596, 12103), (2717, 11564), (2891, 10868), (2926, 10738), (3068, 10241), (3458, 9086), (3724, 8437), (4004, 7847), (4484, 7007), (4543, 6916), (5369, 5852), (5434, 5782)]