20881013085

素因数分解:

$3^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{1447}}^1$

素因数の和:1614

約数の個数: 112

約数和(自身を含む): 38971518336

約数和(自身を除く): 18090505251

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 107, 111, 135, 185, 243, 321, 333, 405, 535, 555, 729, 963, 999, 1215, 1447, 1605, 1665, 2889, 2997, 3645, 3959, 4341, 4815, 4995, 7235, 8667, 8991, 11877, 13023, 14445, 14985, 19795, 21705, 26001, 26973, 35631, 39069, 43335, 44955, 53539, 59385, 65115, 78003, 106893, 117207, 130005, 134865, 154829, 160617, 178155, 195345, 267695, 320679, 351621, 390015, 464487, 481851, 534465, 586035, 774145, 803085, 962037, 1054863, 1393461, 1445553, 1603395, 1758105, 2322435, 2409255, 2886111, 4180383, 4336659, 4810185, 5274315, 5728673, 6967305, 7227765, 12541149, 13009977, 14430555, 17186019, 20901915, 21683295, 28643365, 37623447, 39029931, 51558057, 62705745, 65049885, 85930095, 112870341, 154674171, 188117235, 195149655, 257790285, 464022513, 564351705, 773370855, 1392067539, 2320112565, 4176202617, 6960337695, 20881013085]

約数ペア:

[(1, 20881013085), (3, 6960337695), (5, 4176202617), (9, 2320112565), (15, 1392067539), (27, 773370855), (37, 564351705), (45, 464022513), (81, 257790285), (107, 195149655), (111, 188117235), (135, 154674171), (185, 112870341), (243, 85930095), (321, 65049885), (333, 62705745), (405, 51558057), (535, 39029931), (555, 37623447), (729, 28643365), (963, 21683295), (999, 20901915), (1215, 17186019), (1447, 14430555), (1605, 13009977), (1665, 12541149), (2889, 7227765), (2997, 6967305), (3645, 5728673), (3959, 5274315), (4341, 4810185), (4815, 4336659), (4995, 4180383), (7235, 2886111), (8667, 2409255), (8991, 2322435), (11877, 1758105), (13023, 1603395), (14445, 1445553), (14985, 1393461), (19795, 1054863), (21705, 962037), (26001, 803085), (26973, 774145), (35631, 586035), (39069, 534465), (43335, 481851), (44955, 464487), (53539, 390015), (59385, 351621), (65115, 320679), (78003, 267695), (106893, 195345), (117207, 178155), (130005, 160617), (134865, 154829)]