28557900

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{1511}}^1$

素因数の和:1541

約数の個数: 144

約数和(自身を含む): 104993280

約数和(自身を除く): 76435380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1260, 1350, 1511, 1575, 1890, 2100, 2700, 3022, 3150, 3780, 4533, 4725, 6044, 6300, 7555, 9066, 9450, 10577, 13599, 15110, 18132, 18900, 21154, 22665, 27198, 30220, 31731, 37775, 40797, 42308, 45330, 52885, 54396, 63462, 67995, 75550, 81594, 90660, 95193, 105770, 113325, 126924, 135990, 151100, 158655, 163188, 190386, 203985, 211540, 226650, 264425, 271980, 285579, 317310, 339975, 380772, 407970, 453300, 475965, 528850, 571158, 634620, 679950, 793275, 815940, 951930, 1019925, 1057700, 1142316, 1359900, 1427895, 1586550, 1903860, 2039850, 2379825, 2855790, 3173100, 4079700, 4759650, 5711580, 7139475, 9519300, 14278950, 28557900]

約数ペア:

[(1, 28557900), (2, 14278950), (3, 9519300), (4, 7139475), (5, 5711580), (6, 4759650), (7, 4079700), (9, 3173100), (10, 2855790), (12, 2379825), (14, 2039850), (15, 1903860), (18, 1586550), (20, 1427895), (21, 1359900), (25, 1142316), (27, 1057700), (28, 1019925), (30, 951930), (35, 815940), (36, 793275), (42, 679950), (45, 634620), (50, 571158), (54, 528850), (60, 475965), (63, 453300), (70, 407970), (75, 380772), (84, 339975), (90, 317310), (100, 285579), (105, 271980), (108, 264425), (126, 226650), (135, 211540), (140, 203985), (150, 190386), (175, 163188), (180, 158655), (189, 151100), (210, 135990), (225, 126924), (252, 113325), (270, 105770), (300, 95193), (315, 90660), (350, 81594), (378, 75550), (420, 67995), (450, 63462), (525, 54396), (540, 52885), (630, 45330), (675, 42308), (700, 40797), (756, 37775), (900, 31731), (945, 30220), (1050, 27198), (1260, 22665), (1350, 21154), (1511, 18900), (1575, 18132), (1890, 15110), (2100, 13599), (2700, 10577), (3022, 9450), (3150, 9066), (3780, 7555), (4533, 6300), (4725, 6044)]