256503000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6577}}^1$

素因数の和:6614

約数の個数: 128

約数和(自身を含む): 861981120

約数和(自身を除く): 605478120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 600, 650, 750, 780, 975, 1000, 1300, 1500, 1560, 1625, 1950, 2600, 3000, 3250, 3900, 4875, 6500, 6577, 7800, 9750, 13000, 13154, 19500, 19731, 26308, 32885, 39000, 39462, 52616, 65770, 78924, 85501, 98655, 131540, 157848, 164425, 171002, 197310, 256503, 263080, 328850, 342004, 394620, 427505, 493275, 513006, 657700, 684008, 789240, 822125, 855010, 986550, 1026012, 1282515, 1315400, 1644250, 1710020, 1973100, 2052024, 2137525, 2466375, 2565030, 3288500, 3420040, 3946200, 4275050, 4932750, 5130060, 6412575, 6577000, 8550100, 9865500, 10260120, 10687625, 12825150, 17100200, 19731000, 21375250, 25650300, 32062875, 42750500, 51300600, 64125750, 85501000, 128251500, 256503000]

約数ペア:

[(1, 256503000), (2, 128251500), (3, 85501000), (4, 64125750), (5, 51300600), (6, 42750500), (8, 32062875), (10, 25650300), (12, 21375250), (13, 19731000), (15, 17100200), (20, 12825150), (24, 10687625), (25, 10260120), (26, 9865500), (30, 8550100), (39, 6577000), (40, 6412575), (50, 5130060), (52, 4932750), (60, 4275050), (65, 3946200), (75, 3420040), (78, 3288500), (100, 2565030), (104, 2466375), (120, 2137525), (125, 2052024), (130, 1973100), (150, 1710020), (156, 1644250), (195, 1315400), (200, 1282515), (250, 1026012), (260, 986550), (300, 855010), (312, 822125), (325, 789240), (375, 684008), (390, 657700), (500, 513006), (520, 493275), (600, 427505), (650, 394620), (750, 342004), (780, 328850), (975, 263080), (1000, 256503), (1300, 197310), (1500, 171002), (1560, 164425), (1625, 157848), (1950, 131540), (2600, 98655), (3000, 85501), (3250, 78924), (3900, 65770), (4875, 52616), (6500, 39462), (6577, 39000), (7800, 32885), (9750, 26308), (13000, 19731), (13154, 19500)]