80682800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1667}}^1$

素因数の和:1707

約数の個数: 90

約数和(自身を含む): 213192084

約数和(自身を除く): 132509284

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 440, 484, 550, 605, 880, 968, 1100, 1210, 1667, 1936, 2200, 2420, 3025, 3334, 4400, 4840, 6050, 6668, 8335, 9680, 12100, 13336, 16670, 18337, 24200, 26672, 33340, 36674, 41675, 48400, 66680, 73348, 83350, 91685, 133360, 146696, 166700, 183370, 201707, 293392, 333400, 366740, 403414, 458425, 666800, 733480, 806828, 916850, 1008535, 1466960, 1613656, 1833700, 2017070, 3227312, 3667400, 4034140, 5042675, 7334800, 8068280, 10085350, 16136560, 20170700, 40341400, 80682800]

約数ペア:

[(1, 80682800), (2, 40341400), (4, 20170700), (5, 16136560), (8, 10085350), (10, 8068280), (11, 7334800), (16, 5042675), (20, 4034140), (22, 3667400), (25, 3227312), (40, 2017070), (44, 1833700), (50, 1613656), (55, 1466960), (80, 1008535), (88, 916850), (100, 806828), (110, 733480), (121, 666800), (176, 458425), (200, 403414), (220, 366740), (242, 333400), (275, 293392), (400, 201707), (440, 183370), (484, 166700), (550, 146696), (605, 133360), (880, 91685), (968, 83350), (1100, 73348), (1210, 66680), (1667, 48400), (1936, 41675), (2200, 36674), (2420, 33340), (3025, 26672), (3334, 24200), (4400, 18337), (4840, 16670), (6050, 13336), (6668, 12100), (8335, 9680)]