20784017844

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{13463}}^1$

素因数の和:13590

約数の個数: 144

約数和(自身を含む): 57732554880

約数和(自身を除く): 36948537036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 61, 74, 76, 111, 114, 122, 148, 171, 183, 222, 228, 244, 333, 342, 366, 444, 549, 666, 684, 703, 732, 1098, 1159, 1332, 1406, 2109, 2196, 2257, 2318, 2812, 3477, 4218, 4514, 4636, 6327, 6771, 6954, 8436, 9028, 10431, 12654, 13463, 13542, 13908, 20313, 20862, 25308, 26926, 27084, 40389, 40626, 41724, 42883, 53852, 80778, 81252, 85766, 121167, 128649, 161556, 171532, 242334, 255797, 257298, 385947, 484668, 498131, 511594, 514596, 767391, 771894, 821243, 996262, 1023188, 1494393, 1534782, 1543788, 1642486, 1992524, 2302173, 2463729, 2988786, 3069564, 3284972, 4483179, 4604346, 4927458, 5977572, 7391187, 8966358, 9208692, 9464489, 9854916, 14782374, 15603617, 17932716, 18928978, 28393467, 29564748, 30385991, 31207234, 37857956, 46810851, 56786934, 60771982, 62414468, 85180401, 91157973, 93621702, 113573868, 121543964, 140432553, 170360802, 182315946, 187243404, 273473919, 280865106, 340721604, 364631892, 546947838, 561730212, 577333829, 1093895676, 1154667658, 1732001487, 2309335316, 3464002974, 5196004461, 6928005948, 10392008922, 20784017844]

約数ペア:

[(1, 20784017844), (2, 10392008922), (3, 6928005948), (4, 5196004461), (6, 3464002974), (9, 2309335316), (12, 1732001487), (18, 1154667658), (19, 1093895676), (36, 577333829), (37, 561730212), (38, 546947838), (57, 364631892), (61, 340721604), (74, 280865106), (76, 273473919), (111, 187243404), (114, 182315946), (122, 170360802), (148, 140432553), (171, 121543964), (183, 113573868), (222, 93621702), (228, 91157973), (244, 85180401), (333, 62414468), (342, 60771982), (366, 56786934), (444, 46810851), (549, 37857956), (666, 31207234), (684, 30385991), (703, 29564748), (732, 28393467), (1098, 18928978), (1159, 17932716), (1332, 15603617), (1406, 14782374), (2109, 9854916), (2196, 9464489), (2257, 9208692), (2318, 8966358), (2812, 7391187), (3477, 5977572), (4218, 4927458), (4514, 4604346), (4636, 4483179), (6327, 3284972), (6771, 3069564), (6954, 2988786), (8436, 2463729), (9028, 2302173), (10431, 1992524), (12654, 1642486), (13463, 1543788), (13542, 1534782), (13908, 1494393), (20313, 1023188), (20862, 996262), (25308, 821243), (26926, 771894), (27084, 767391), (40389, 514596), (40626, 511594), (41724, 498131), (42883, 484668), (53852, 385947), (80778, 257298), (81252, 255797), (85766, 242334), (121167, 171532), (128649, 161556)]