80940680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 192205440

約数和(自身を除く): 111264760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 230, 388, 460, 485, 776, 907, 920, 970, 1814, 1940, 2231, 3628, 3880, 4462, 4535, 7256, 8924, 9070, 11155, 17848, 18140, 20861, 22310, 36280, 41722, 44620, 83444, 87979, 89240, 104305, 166888, 175958, 208610, 351916, 417220, 439895, 703832, 834440, 879790, 1759580, 2023517, 3519160, 4047034, 8094068, 10117585, 16188136, 20235170, 40470340, 80940680]

約数ペア:

[(1, 80940680), (2, 40470340), (4, 20235170), (5, 16188136), (8, 10117585), (10, 8094068), (20, 4047034), (23, 3519160), (40, 2023517), (46, 1759580), (92, 879790), (97, 834440), (115, 703832), (184, 439895), (194, 417220), (230, 351916), (388, 208610), (460, 175958), (485, 166888), (776, 104305), (907, 89240), (920, 87979), (970, 83444), (1814, 44620), (1940, 41722), (2231, 36280), (3628, 22310), (3880, 20861), (4462, 18140), (4535, 17848), (7256, 11155), (8924, 9070)]