156720729080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4157}}^1\times {\mathrm{15451}}^1$

素因数の和:19680

約数の個数: 64

約数和(自身を含む): 358511741280

約数和(自身を除く): 201791012200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 4157, 8314, 15451, 16628, 20785, 30902, 33256, 41570, 61804, 77255, 83140, 123608, 154510, 166280, 253577, 309020, 507154, 618040, 942511, 1014308, 1267885, 1885022, 2028616, 2535770, 3770044, 4712555, 5071540, 7540088, 9425110, 10143080, 18850220, 37700440, 64229807, 128459614, 256919228, 321149035, 513838456, 642298070, 1284596140, 2569192280, 3918018227, 7836036454, 15672072908, 19590091135, 31344145816, 39180182270, 78360364540, 156720729080]

約数ペア:

[(1, 156720729080), (2, 78360364540), (4, 39180182270), (5, 31344145816), (8, 19590091135), (10, 15672072908), (20, 7836036454), (40, 3918018227), (61, 2569192280), (122, 1284596140), (244, 642298070), (305, 513838456), (488, 321149035), (610, 256919228), (1220, 128459614), (2440, 64229807), (4157, 37700440), (8314, 18850220), (15451, 10143080), (16628, 9425110), (20785, 7540088), (30902, 5071540), (33256, 4712555), (41570, 3770044), (61804, 2535770), (77255, 2028616), (83140, 1885022), (123608, 1267885), (154510, 1014308), (166280, 942511), (253577, 618040), (309020, 507154)]