21528900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1259}}^1$

素因数の和:1298

約数の個数: 108

約数和(自身を含む): 71089200

約数和(自身を除く): 49560300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 75, 76, 90, 95, 100, 114, 150, 171, 180, 190, 225, 228, 285, 300, 342, 380, 450, 475, 570, 684, 855, 900, 950, 1140, 1259, 1425, 1710, 1900, 2518, 2850, 3420, 3777, 4275, 5036, 5700, 6295, 7554, 8550, 11331, 12590, 15108, 17100, 18885, 22662, 23921, 25180, 31475, 37770, 45324, 47842, 56655, 62950, 71763, 75540, 94425, 95684, 113310, 119605, 125900, 143526, 188850, 215289, 226620, 239210, 283275, 287052, 358815, 377700, 430578, 478420, 566550, 598025, 717630, 861156, 1076445, 1133100, 1196050, 1435260, 1794075, 2152890, 2392100, 3588150, 4305780, 5382225, 7176300, 10764450, 21528900]

約数ペア:

[(1, 21528900), (2, 10764450), (3, 7176300), (4, 5382225), (5, 4305780), (6, 3588150), (9, 2392100), (10, 2152890), (12, 1794075), (15, 1435260), (18, 1196050), (19, 1133100), (20, 1076445), (25, 861156), (30, 717630), (36, 598025), (38, 566550), (45, 478420), (50, 430578), (57, 377700), (60, 358815), (75, 287052), (76, 283275), (90, 239210), (95, 226620), (100, 215289), (114, 188850), (150, 143526), (171, 125900), (180, 119605), (190, 113310), (225, 95684), (228, 94425), (285, 75540), (300, 71763), (342, 62950), (380, 56655), (450, 47842), (475, 45324), (570, 37770), (684, 31475), (855, 25180), (900, 23921), (950, 22662), (1140, 18885), (1259, 17100), (1425, 15108), (1710, 12590), (1900, 11331), (2518, 8550), (2850, 7554), (3420, 6295), (3777, 5700), (4275, 5036)]