256425000

素因数分解:

$2^3\times 3^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:310

約数の個数: 192

約数和(自身を含む): 866194560

約数和(自身を除く): 609769560

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, 263, 300, 312, 325, 375, 390, 500, 520, 526, 600, 625, 650, 750, 780, 789, 975, 1000, 1052, 1250, 1300, 1315, 1500, 1560, 1578, 1625, 1875, 1950, 2104, 2500, 2600, 2630, 3000, 3125, 3156, 3250, 3419, 3750, 3900, 3945, 4875, 5000, 5260, 6250, 6312, 6500, 6575, 6838, 7500, 7800, 7890, 8125, 9375, 9750, 10257, 10520, 12500, 13000, 13150, 13676, 15000, 15780, 16250, 17095, 18750, 19500, 19725, 20514, 24375, 25000, 26300, 27352, 31560, 32500, 32875, 34190, 37500, 39000, 39450, 40625, 41028, 48750, 51285, 52600, 65000, 65750, 68380, 75000, 78900, 81250, 82056, 85475, 97500, 98625, 102570, 121875, 131500, 136760, 157800, 162500, 164375, 170950, 195000, 197250, 205140, 243750, 256425, 263000, 325000, 328750, 341900, 394500, 410280, 427375, 487500, 493125, 512850, 657500, 683800, 789000, 821875, 854750, 975000, 986250, 1025700, 1282125, 1315000, 1643750, 1709500, 1972500, 2051400, 2136875, 2465625, 2564250, 3287500, 3419000, 3945000, 4273750, 4931250, 5128500, 6410625, 6575000, 8547500, 9862500, 10257000, 10684375, 12821250, 17095000, 19725000, 21368750, 25642500, 32053125, 42737500, 51285000, 64106250, 85475000, 128212500, 256425000]

約数ペア:

[(1, 256425000), (2, 128212500), (3, 85475000), (4, 64106250), (5, 51285000), (6, 42737500), (8, 32053125), (10, 25642500), (12, 21368750), (13, 19725000), (15, 17095000), (20, 12821250), (24, 10684375), (25, 10257000), (26, 9862500), (30, 8547500), (39, 6575000), (40, 6410625), (50, 5128500), (52, 4931250), (60, 4273750), (65, 3945000), (75, 3419000), (78, 3287500), (100, 2564250), (104, 2465625), (120, 2136875), (125, 2051400), (130, 1972500), (150, 1709500), (156, 1643750), (195, 1315000), (200, 1282125), (250, 1025700), (260, 986250), (263, 975000), (300, 854750), (312, 821875), (325, 789000), (375, 683800), (390, 657500), (500, 512850), (520, 493125), (526, 487500), (600, 427375), (625, 410280), (650, 394500), (750, 341900), (780, 328750), (789, 325000), (975, 263000), (1000, 256425), (1052, 243750), (1250, 205140), (1300, 197250), (1315, 195000), (1500, 170950), (1560, 164375), (1578, 162500), (1625, 157800), (1875, 136760), (1950, 131500), (2104, 121875), (2500, 102570), (2600, 98625), (2630, 97500), (3000, 85475), (3125, 82056), (3156, 81250), (3250, 78900), (3419, 75000), (3750, 68380), (3900, 65750), (3945, 65000), (4875, 52600), (5000, 51285), (5260, 48750), (6250, 41028), (6312, 40625), (6500, 39450), (6575, 39000), (6838, 37500), (7500, 34190), (7800, 32875), (7890, 32500), (8125, 31560), (9375, 27352), (9750, 26300), (10257, 25000), (10520, 24375), (12500, 20514), (13000, 19725), (13150, 19500), (13676, 18750), (15000, 17095), (15780, 16250)]