72217400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{8807}}^1$

素因数の和:8864

約数の個数: 48

約数和(自身を含む): 172020240

約数和(自身を除く): 99802840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 8807, 17614, 35228, 44035, 70456, 88070, 176140, 220175, 352280, 361087, 440350, 722174, 880700, 1444348, 1761400, 1805435, 2888696, 3610870, 7221740, 9027175, 14443480, 18054350, 36108700, 72217400]

約数ペア:

[(1, 72217400), (2, 36108700), (4, 18054350), (5, 14443480), (8, 9027175), (10, 7221740), (20, 3610870), (25, 2888696), (40, 1805435), (41, 1761400), (50, 1444348), (82, 880700), (100, 722174), (164, 440350), (200, 361087), (205, 352280), (328, 220175), (410, 176140), (820, 88070), (1025, 70456), (1640, 44035), (2050, 35228), (4100, 17614), (8200, 8807)]