79772800

素因数分解:

$2^7\times 5^2\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:378

約数の個数: 96

約数和(自身を含む): 199870020

約数和(自身を除く): 120097220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 128, 160, 194, 200, 257, 320, 388, 400, 485, 514, 640, 776, 800, 970, 1028, 1285, 1552, 1600, 1940, 2056, 2425, 2570, 3104, 3200, 3880, 4112, 4850, 5140, 6208, 6425, 7760, 8224, 9700, 10280, 12416, 12850, 15520, 16448, 19400, 20560, 24929, 25700, 31040, 32896, 38800, 41120, 49858, 51400, 62080, 77600, 82240, 99716, 102800, 124645, 155200, 164480, 199432, 205600, 249290, 310400, 398864, 411200, 498580, 623225, 797728, 822400, 997160, 1246450, 1595456, 1994320, 2492900, 3190912, 3988640, 4985800, 7977280, 9971600, 15954560, 19943200, 39886400, 79772800]

約数ペア:

[(1, 79772800), (2, 39886400), (4, 19943200), (5, 15954560), (8, 9971600), (10, 7977280), (16, 4985800), (20, 3988640), (25, 3190912), (32, 2492900), (40, 1994320), (50, 1595456), (64, 1246450), (80, 997160), (97, 822400), (100, 797728), (128, 623225), (160, 498580), (194, 411200), (200, 398864), (257, 310400), (320, 249290), (388, 205600), (400, 199432), (485, 164480), (514, 155200), (640, 124645), (776, 102800), (800, 99716), (970, 82240), (1028, 77600), (1285, 62080), (1552, 51400), (1600, 49858), (1940, 41120), (2056, 38800), (2425, 32896), (2570, 31040), (3104, 25700), (3200, 24929), (3880, 20560), (4112, 19400), (4850, 16448), (5140, 15520), (6208, 12850), (6425, 12416), (7760, 10280), (8224, 9700)]