20985944224

素因数分解:

$2^5\times 7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1319}}^1$

素因数の和:1555

約数の個数: 144

約数和(自身を含む): 49107643200

約数和(自身を除く): 28121698976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 73, 98, 112, 139, 146, 196, 224, 278, 292, 392, 511, 556, 584, 784, 973, 1022, 1112, 1168, 1319, 1568, 1946, 2044, 2224, 2336, 2638, 3577, 3892, 4088, 4448, 5276, 6811, 7154, 7784, 8176, 9233, 10147, 10552, 13622, 14308, 15568, 16352, 18466, 20294, 21104, 27244, 28616, 31136, 36932, 40588, 42208, 54488, 57232, 64631, 71029, 73864, 81176, 96287, 108976, 114464, 129262, 142058, 147728, 162352, 183341, 192574, 217952, 258524, 284116, 295456, 324704, 366682, 385148, 497203, 517048, 568232, 674009, 733364, 770296, 994406, 1034096, 1136464, 1283387, 1348018, 1466728, 1540592, 1988812, 2068192, 2272928, 2566774, 2696036, 2933456, 3081184, 3977624, 4718063, 5133548, 5392072, 5866912, 7955248, 8983709, 9436126, 10267096, 10784144, 13383893, 15910496, 17967418, 18872252, 20534192, 21568288, 26767786, 35934836, 37744504, 41068384, 53535572, 71869672, 75489008, 93687251, 107071144, 143739344, 150978016, 187374502, 214142288, 287478688, 374749004, 428284576, 655810757, 749498008, 1311621514, 1498996016, 2623243028, 2997992032, 5246486056, 10492972112, 20985944224]

約数ペア:

[(1, 20985944224), (2, 10492972112), (4, 5246486056), (7, 2997992032), (8, 2623243028), (14, 1498996016), (16, 1311621514), (28, 749498008), (32, 655810757), (49, 428284576), (56, 374749004), (73, 287478688), (98, 214142288), (112, 187374502), (139, 150978016), (146, 143739344), (196, 107071144), (224, 93687251), (278, 75489008), (292, 71869672), (392, 53535572), (511, 41068384), (556, 37744504), (584, 35934836), (784, 26767786), (973, 21568288), (1022, 20534192), (1112, 18872252), (1168, 17967418), (1319, 15910496), (1568, 13383893), (1946, 10784144), (2044, 10267096), (2224, 9436126), (2336, 8983709), (2638, 7955248), (3577, 5866912), (3892, 5392072), (4088, 5133548), (4448, 4718063), (5276, 3977624), (6811, 3081184), (7154, 2933456), (7784, 2696036), (8176, 2566774), (9233, 2272928), (10147, 2068192), (10552, 1988812), (13622, 1540592), (14308, 1466728), (15568, 1348018), (16352, 1283387), (18466, 1136464), (20294, 1034096), (21104, 994406), (27244, 770296), (28616, 733364), (31136, 674009), (36932, 568232), (40588, 517048), (42208, 497203), (54488, 385148), (57232, 366682), (64631, 324704), (71029, 295456), (73864, 284116), (81176, 258524), (96287, 217952), (108976, 192574), (114464, 183341), (129262, 162352), (142058, 147728)]