20902500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{929}}^1$

素因数の和:959

約数の個数: 90

約数和(自身を含む): 66096030

約数和(自身を除く): 45193530

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 929, 1125, 1250, 1500, 1858, 1875, 2250, 2500, 2787, 3716, 3750, 4500, 4645, 5574, 5625, 7500, 8361, 9290, 11148, 11250, 13935, 16722, 18580, 22500, 23225, 27870, 33444, 41805, 46450, 55740, 69675, 83610, 92900, 116125, 139350, 167220, 209025, 232250, 278700, 348375, 418050, 464500, 580625, 696750, 836100, 1045125, 1161250, 1393500, 1741875, 2090250, 2322500, 3483750, 4180500, 5225625, 6967500, 10451250, 20902500]

約数ペア:

[(1, 20902500), (2, 10451250), (3, 6967500), (4, 5225625), (5, 4180500), (6, 3483750), (9, 2322500), (10, 2090250), (12, 1741875), (15, 1393500), (18, 1161250), (20, 1045125), (25, 836100), (30, 696750), (36, 580625), (45, 464500), (50, 418050), (60, 348375), (75, 278700), (90, 232250), (100, 209025), (125, 167220), (150, 139350), (180, 116125), (225, 92900), (250, 83610), (300, 69675), (375, 55740), (450, 46450), (500, 41805), (625, 33444), (750, 27870), (900, 23225), (929, 22500), (1125, 18580), (1250, 16722), (1500, 13935), (1858, 11250), (1875, 11148), (2250, 9290), (2500, 8361), (2787, 7500), (3716, 5625), (3750, 5574), (4500, 4645)]