419886580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1\times {\mathrm{907}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 896958720

約数和(自身を除く): 477072140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 293, 316, 395, 586, 790, 907, 1172, 1465, 1580, 1814, 2930, 3628, 4535, 5860, 9070, 18140, 23147, 46294, 71653, 92588, 115735, 143306, 231470, 265751, 286612, 358265, 462940, 531502, 716530, 1063004, 1328755, 1433060, 2657510, 5315020, 20994329, 41988658, 83977316, 104971645, 209943290, 419886580]

約数ペア:

[(1, 419886580), (2, 209943290), (4, 104971645), (5, 83977316), (10, 41988658), (20, 20994329), (79, 5315020), (158, 2657510), (293, 1433060), (316, 1328755), (395, 1063004), (586, 716530), (790, 531502), (907, 462940), (1172, 358265), (1465, 286612), (1580, 265751), (1814, 231470), (2930, 143306), (3628, 115735), (4535, 92588), (5860, 71653), (9070, 46294), (18140, 23147)]