8159120

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1291}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 19224960

約数和(自身を除く): 11065840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1291, 1580, 2582, 3160, 5164, 6320, 6455, 10328, 12910, 20656, 25820, 51640, 101989, 103280, 203978, 407956, 509945, 815912, 1019890, 1631824, 2039780, 4079560, 8159120]

約数ペア:

[(1, 8159120), (2, 4079560), (4, 2039780), (5, 1631824), (8, 1019890), (10, 815912), (16, 509945), (20, 407956), (40, 203978), (79, 103280), (80, 101989), (158, 51640), (316, 25820), (395, 20656), (632, 12910), (790, 10328), (1264, 6455), (1291, 6320), (1580, 5164), (2582, 3160)]