256405500

素因数分解:

$2^2\times 3^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 240

約数和(自身を含む): 902725824

約数和(自身を除く): 646320324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 81, 90, 100, 108, 117, 125, 130, 135, 150, 156, 162, 180, 195, 225, 234, 250, 260, 270, 300, 324, 325, 351, 375, 390, 405, 450, 468, 487, 500, 540, 585, 650, 675, 702, 750, 780, 810, 900, 974, 975, 1053, 1125, 1170, 1300, 1350, 1404, 1461, 1500, 1620, 1625, 1755, 1948, 1950, 2025, 2106, 2250, 2340, 2435, 2700, 2922, 2925, 3250, 3375, 3510, 3900, 4050, 4212, 4383, 4500, 4870, 4875, 5265, 5844, 5850, 6331, 6500, 6750, 7020, 7305, 8100, 8766, 8775, 9740, 9750, 10125, 10530, 11700, 12175, 12662, 13149, 13500, 14610, 14625, 17532, 17550, 18993, 19500, 20250, 21060, 21915, 24350, 25324, 26298, 26325, 29220, 29250, 31655, 35100, 36525, 37986, 39447, 40500, 43830, 43875, 48700, 52596, 52650, 56979, 58500, 60875, 63310, 65745, 73050, 75972, 78894, 87660, 87750, 94965, 105300, 109575, 113958, 121750, 126620, 131490, 131625, 146100, 157788, 158275, 170937, 175500, 182625, 189930, 197235, 219150, 227916, 243500, 262980, 263250, 284895, 316550, 328725, 341874, 365250, 379860, 394470, 438300, 474825, 512811, 526500, 547875, 569790, 633100, 657450, 683748, 730500, 788940, 791375, 854685, 949650, 986175, 1025622, 1095750, 1139580, 1314900, 1424475, 1582750, 1643625, 1709370, 1899300, 1972350, 2051244, 2191500, 2374125, 2564055, 2848950, 3165500, 3287250, 3418740, 3944700, 4273425, 4748250, 4930875, 5128110, 5697900, 6574500, 7122375, 8546850, 9496500, 9861750, 10256220, 12820275, 14244750, 17093700, 19723500, 21367125, 25640550, 28489500, 42734250, 51281100, 64101375, 85468500, 128202750, 256405500]

約数ペア:

[(1, 256405500), (2, 128202750), (3, 85468500), (4, 64101375), (5, 51281100), (6, 42734250), (9, 28489500), (10, 25640550), (12, 21367125), (13, 19723500), (15, 17093700), (18, 14244750), (20, 12820275), (25, 10256220), (26, 9861750), (27, 9496500), (30, 8546850), (36, 7122375), (39, 6574500), (45, 5697900), (50, 5128110), (52, 4930875), (54, 4748250), (60, 4273425), (65, 3944700), (75, 3418740), (78, 3287250), (81, 3165500), (90, 2848950), (100, 2564055), (108, 2374125), (117, 2191500), (125, 2051244), (130, 1972350), (135, 1899300), (150, 1709370), (156, 1643625), (162, 1582750), (180, 1424475), (195, 1314900), (225, 1139580), (234, 1095750), (250, 1025622), (260, 986175), (270, 949650), (300, 854685), (324, 791375), (325, 788940), (351, 730500), (375, 683748), (390, 657450), (405, 633100), (450, 569790), (468, 547875), (487, 526500), (500, 512811), (540, 474825), (585, 438300), (650, 394470), (675, 379860), (702, 365250), (750, 341874), (780, 328725), (810, 316550), (900, 284895), (974, 263250), (975, 262980), (1053, 243500), (1125, 227916), (1170, 219150), (1300, 197235), (1350, 189930), (1404, 182625), (1461, 175500), (1500, 170937), (1620, 158275), (1625, 157788), (1755, 146100), (1948, 131625), (1950, 131490), (2025, 126620), (2106, 121750), (2250, 113958), (2340, 109575), (2435, 105300), (2700, 94965), (2922, 87750), (2925, 87660), (3250, 78894), (3375, 75972), (3510, 73050), (3900, 65745), (4050, 63310), (4212, 60875), (4383, 58500), (4500, 56979), (4870, 52650), (4875, 52596), (5265, 48700), (5844, 43875), (5850, 43830), (6331, 40500), (6500, 39447), (6750, 37986), (7020, 36525), (7305, 35100), (8100, 31655), (8766, 29250), (8775, 29220), (9740, 26325), (9750, 26298), (10125, 25324), (10530, 24350), (11700, 21915), (12175, 21060), (12662, 20250), (13149, 19500), (13500, 18993), (14610, 17550), (14625, 17532)]