256455000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 895494600

約数和(自身を除く): 639039600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 41, 45, 50, 60, 72, 75, 82, 90, 100, 120, 123, 125, 139, 150, 164, 180, 200, 205, 225, 246, 250, 278, 300, 328, 360, 369, 375, 410, 417, 450, 492, 500, 556, 600, 615, 625, 695, 738, 750, 820, 834, 900, 984, 1000, 1025, 1112, 1125, 1230, 1250, 1251, 1390, 1476, 1500, 1640, 1668, 1800, 1845, 1875, 2050, 2085, 2250, 2460, 2500, 2502, 2780, 2952, 3000, 3075, 3336, 3475, 3690, 3750, 4100, 4170, 4500, 4920, 5000, 5004, 5125, 5560, 5625, 5699, 6150, 6255, 6950, 7380, 7500, 8200, 8340, 9000, 9225, 10008, 10250, 10425, 11250, 11398, 12300, 12510, 13900, 14760, 15000, 15375, 16680, 17097, 17375, 18450, 20500, 20850, 22500, 22796, 24600, 25020, 25625, 27800, 28495, 30750, 31275, 34194, 34750, 36900, 41000, 41700, 45000, 45592, 46125, 50040, 51250, 51291, 52125, 56990, 61500, 62550, 68388, 69500, 73800, 76875, 83400, 85485, 86875, 92250, 102500, 102582, 104250, 113980, 123000, 125100, 136776, 139000, 142475, 153750, 156375, 170970, 173750, 184500, 205000, 205164, 208500, 227960, 230625, 250200, 256455, 260625, 284950, 307500, 312750, 341940, 347500, 369000, 410328, 417000, 427425, 461250, 512910, 521250, 569900, 615000, 625500, 683880, 695000, 712375, 781875, 854850, 922500, 1025820, 1042500, 1139800, 1251000, 1282275, 1424750, 1563750, 1709700, 1845000, 2051640, 2085000, 2137125, 2564550, 2849500, 3127500, 3419400, 3561875, 4274250, 5129100, 5699000, 6255000, 6411375, 7123750, 8548500, 10258200, 10685625, 12822750, 14247500, 17097000, 21371250, 25645500, 28495000, 32056875, 42742500, 51291000, 64113750, 85485000, 128227500, 256455000]

約数ペア:

[(1, 256455000), (2, 128227500), (3, 85485000), (4, 64113750), (5, 51291000), (6, 42742500), (8, 32056875), (9, 28495000), (10, 25645500), (12, 21371250), (15, 17097000), (18, 14247500), (20, 12822750), (24, 10685625), (25, 10258200), (30, 8548500), (36, 7123750), (40, 6411375), (41, 6255000), (45, 5699000), (50, 5129100), (60, 4274250), (72, 3561875), (75, 3419400), (82, 3127500), (90, 2849500), (100, 2564550), (120, 2137125), (123, 2085000), (125, 2051640), (139, 1845000), (150, 1709700), (164, 1563750), (180, 1424750), (200, 1282275), (205, 1251000), (225, 1139800), (246, 1042500), (250, 1025820), (278, 922500), (300, 854850), (328, 781875), (360, 712375), (369, 695000), (375, 683880), (410, 625500), (417, 615000), (450, 569900), (492, 521250), (500, 512910), (556, 461250), (600, 427425), (615, 417000), (625, 410328), (695, 369000), (738, 347500), (750, 341940), (820, 312750), (834, 307500), (900, 284950), (984, 260625), (1000, 256455), (1025, 250200), (1112, 230625), (1125, 227960), (1230, 208500), (1250, 205164), (1251, 205000), (1390, 184500), (1476, 173750), (1500, 170970), (1640, 156375), (1668, 153750), (1800, 142475), (1845, 139000), (1875, 136776), (2050, 125100), (2085, 123000), (2250, 113980), (2460, 104250), (2500, 102582), (2502, 102500), (2780, 92250), (2952, 86875), (3000, 85485), (3075, 83400), (3336, 76875), (3475, 73800), (3690, 69500), (3750, 68388), (4100, 62550), (4170, 61500), (4500, 56990), (4920, 52125), (5000, 51291), (5004, 51250), (5125, 50040), (5560, 46125), (5625, 45592), (5699, 45000), (6150, 41700), (6255, 41000), (6950, 36900), (7380, 34750), (7500, 34194), (8200, 31275), (8340, 30750), (9000, 28495), (9225, 27800), (10008, 25625), (10250, 25020), (10425, 24600), (11250, 22796), (11398, 22500), (12300, 20850), (12510, 20500), (13900, 18450), (14760, 17375), (15000, 17097), (15375, 16680)]