20120884550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1\times {\mathrm{659}}^1$

素因数の和:1230

約数の個数: 96

約数和(自身を含む): 40834886400

約数和(自身を除く): 20714001850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 107, 130, 214, 325, 439, 535, 650, 659, 878, 1070, 1318, 1391, 2195, 2675, 2782, 3295, 4390, 5350, 5707, 6590, 6955, 8567, 10975, 11414, 13910, 16475, 17134, 21950, 28535, 32950, 34775, 42835, 46973, 57070, 69550, 70513, 85670, 93946, 141026, 142675, 214175, 234865, 285350, 289301, 352565, 428350, 469730, 578602, 610649, 705130, 916669, 1174325, 1221298, 1446505, 1762825, 1833338, 2348650, 2893010, 3053245, 3525650, 3760913, 4583345, 6106490, 7232525, 7521826, 9166690, 14465050, 15266225, 18804565, 22916725, 30532450, 30955207, 37609130, 45833450, 61910414, 94022825, 154776035, 188045650, 309552070, 402417691, 773880175, 804835382, 1547760350, 2012088455, 4024176910, 10060442275, 20120884550]

約数ペア:

[(1, 20120884550), (2, 10060442275), (5, 4024176910), (10, 2012088455), (13, 1547760350), (25, 804835382), (26, 773880175), (50, 402417691), (65, 309552070), (107, 188045650), (130, 154776035), (214, 94022825), (325, 61910414), (439, 45833450), (535, 37609130), (650, 30955207), (659, 30532450), (878, 22916725), (1070, 18804565), (1318, 15266225), (1391, 14465050), (2195, 9166690), (2675, 7521826), (2782, 7232525), (3295, 6106490), (4390, 4583345), (5350, 3760913), (5707, 3525650), (6590, 3053245), (6955, 2893010), (8567, 2348650), (10975, 1833338), (11414, 1762825), (13910, 1446505), (16475, 1221298), (17134, 1174325), (21950, 916669), (28535, 705130), (32950, 610649), (34775, 578602), (42835, 469730), (46973, 428350), (57070, 352565), (69550, 289301), (70513, 285350), (85670, 234865), (93946, 214175), (141026, 142675)]