80379320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1117}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 207679680

約数和(自身を除く): 127300360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1117, 1285, 1799, 2056, 2234, 2570, 3598, 4468, 5140, 5585, 7196, 7819, 8936, 8995, 10280, 11170, 14392, 15638, 17990, 22340, 31276, 35980, 39095, 44680, 62552, 71960, 78190, 156380, 287069, 312760, 574138, 1148276, 1435345, 2009483, 2296552, 2870690, 4018966, 5741380, 8037932, 10047415, 11482760, 16075864, 20094830, 40189660, 80379320]

約数ペア:

[(1, 80379320), (2, 40189660), (4, 20094830), (5, 16075864), (7, 11482760), (8, 10047415), (10, 8037932), (14, 5741380), (20, 4018966), (28, 2870690), (35, 2296552), (40, 2009483), (56, 1435345), (70, 1148276), (140, 574138), (257, 312760), (280, 287069), (514, 156380), (1028, 78190), (1117, 71960), (1285, 62552), (1799, 44680), (2056, 39095), (2234, 35980), (2570, 31276), (3598, 22340), (4468, 17990), (5140, 15638), (5585, 14392), (7196, 11170), (7819, 10280), (8936, 8995)]