81936800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9311}}^1$

素因数の和:9342

約数の個数: 72

約数和(自身を含む): 218236032

約数和(自身を除く): 136299232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 4400, 8800, 9311, 18622, 37244, 46555, 74488, 93110, 102421, 148976, 186220, 204842, 232775, 297952, 372440, 409684, 465550, 512105, 744880, 819368, 931100, 1024210, 1489760, 1638736, 1862200, 2048420, 2560525, 3277472, 3724400, 4096840, 5121050, 7448800, 8193680, 10242100, 16387360, 20484200, 40968400, 81936800]

約数ペア:

[(1, 81936800), (2, 40968400), (4, 20484200), (5, 16387360), (8, 10242100), (10, 8193680), (11, 7448800), (16, 5121050), (20, 4096840), (22, 3724400), (25, 3277472), (32, 2560525), (40, 2048420), (44, 1862200), (50, 1638736), (55, 1489760), (80, 1024210), (88, 931100), (100, 819368), (110, 744880), (160, 512105), (176, 465550), (200, 409684), (220, 372440), (275, 297952), (352, 232775), (400, 204842), (440, 186220), (550, 148976), (800, 102421), (880, 93110), (1100, 74488), (1760, 46555), (2200, 37244), (4400, 18622), (8800, 9311)]