81931040

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26951}}^1$

素因数の和:26985

約数の個数: 48

約数和(自身を含む): 203757120

約数和(自身を除く): 121826080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26951, 53902, 107804, 134755, 215608, 269510, 431216, 512069, 539020, 862432, 1024138, 1078040, 2048276, 2156080, 2560345, 4096552, 4312160, 5120690, 8193104, 10241380, 16386208, 20482760, 40965520, 81931040]

約数ペア:

[(1, 81931040), (2, 40965520), (4, 20482760), (5, 16386208), (8, 10241380), (10, 8193104), (16, 5120690), (19, 4312160), (20, 4096552), (32, 2560345), (38, 2156080), (40, 2048276), (76, 1078040), (80, 1024138), (95, 862432), (152, 539020), (160, 512069), (190, 431216), (304, 269510), (380, 215608), (608, 134755), (760, 107804), (1520, 53902), (3040, 26951)]