19707873640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{8191}}^1$

素因数の和:8883

約数の個数: 128

約数和(自身を含む): 54664888320

約数和(自身を除く): 34957014680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 661, 728, 910, 1322, 1820, 2644, 3305, 3640, 4627, 5288, 6610, 8191, 8593, 9254, 13220, 16382, 17186, 18508, 23135, 26440, 32764, 34372, 37016, 40955, 42965, 46270, 57337, 60151, 65528, 68744, 81910, 85930, 92540, 106483, 114674, 120302, 163820, 171860, 185080, 212966, 229348, 240604, 286685, 300755, 327640, 343720, 425932, 458696, 481208, 532415, 573370, 601510, 745381, 851864, 1064830, 1146740, 1203020, 1490762, 2129660, 2293480, 2406040, 2981524, 3726905, 4259320, 5414251, 5963048, 7453810, 10828502, 14907620, 21657004, 27071255, 29815240, 37899757, 43314008, 54142510, 70385263, 75799514, 108285020, 140770526, 151599028, 189498785, 216570040, 281541052, 303198056, 351926315, 378997570, 492696841, 563082104, 703852630, 757995140, 985393682, 1407705260, 1515990280, 1970787364, 2463484205, 2815410520, 3941574728, 4926968410, 9853936820, 19707873640]

約数ペア:

[(1, 19707873640), (2, 9853936820), (4, 4926968410), (5, 3941574728), (7, 2815410520), (8, 2463484205), (10, 1970787364), (13, 1515990280), (14, 1407705260), (20, 985393682), (26, 757995140), (28, 703852630), (35, 563082104), (40, 492696841), (52, 378997570), (56, 351926315), (65, 303198056), (70, 281541052), (91, 216570040), (104, 189498785), (130, 151599028), (140, 140770526), (182, 108285020), (260, 75799514), (280, 70385263), (364, 54142510), (455, 43314008), (520, 37899757), (661, 29815240), (728, 27071255), (910, 21657004), (1322, 14907620), (1820, 10828502), (2644, 7453810), (3305, 5963048), (3640, 5414251), (4627, 4259320), (5288, 3726905), (6610, 2981524), (8191, 2406040), (8593, 2293480), (9254, 2129660), (13220, 1490762), (16382, 1203020), (17186, 1146740), (18508, 1064830), (23135, 851864), (26440, 745381), (32764, 601510), (34372, 573370), (37016, 532415), (40955, 481208), (42965, 458696), (46270, 425932), (57337, 343720), (60151, 327640), (65528, 300755), (68744, 286685), (81910, 240604), (85930, 229348), (92540, 212966), (106483, 185080), (114674, 171860), (120302, 163820)]