257911320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 256

約数和(自身を含む): 870912000

約数和(自身を除く): 613000680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 41, 57, 60, 62, 76, 82, 89, 93, 95, 114, 120, 123, 124, 152, 155, 164, 178, 186, 190, 205, 228, 246, 248, 267, 285, 310, 328, 356, 372, 380, 410, 445, 456, 465, 492, 534, 570, 589, 615, 620, 712, 744, 760, 779, 820, 890, 930, 984, 1068, 1140, 1178, 1230, 1240, 1271, 1335, 1558, 1640, 1691, 1767, 1780, 1860, 2136, 2280, 2337, 2356, 2460, 2542, 2670, 2759, 2945, 3116, 3382, 3534, 3560, 3649, 3720, 3813, 3895, 4674, 4712, 4920, 5073, 5084, 5340, 5518, 5890, 6232, 6355, 6764, 7068, 7298, 7626, 7790, 8277, 8455, 8835, 9348, 10146, 10168, 10680, 10947, 11036, 11685, 11780, 12710, 13528, 13795, 14136, 14596, 15252, 15580, 16554, 16910, 17670, 18245, 18696, 19065, 20292, 21894, 22072, 23370, 23560, 24149, 25365, 25420, 27590, 29192, 30504, 31160, 33108, 33820, 35340, 36490, 38130, 40584, 41385, 43788, 46740, 48298, 50730, 50840, 52421, 54735, 55180, 66216, 67640, 69331, 70680, 72447, 72980, 76260, 82770, 87576, 93480, 96596, 101460, 104842, 109470, 110360, 113119, 120745, 138662, 144894, 145960, 152520, 157263, 165540, 193192, 202920, 207993, 209684, 218940, 226238, 241490, 262105, 277324, 289788, 314526, 331080, 339357, 346655, 362235, 415986, 419368, 437880, 452476, 482980, 524210, 554648, 565595, 579576, 629052, 678714, 693310, 724470, 786315, 831972, 904952, 965960, 1039965, 1048420, 1131190, 1258104, 1357428, 1386620, 1448940, 1572630, 1663944, 1696785, 2079930, 2096840, 2149261, 2262380, 2714856, 2773240, 2897880, 3145260, 3393570, 4159860, 4298522, 4524760, 6290520, 6447783, 6787140, 8319720, 8597044, 10746305, 12895566, 13574280, 17194088, 21492610, 25791132, 32238915, 42985220, 51582264, 64477830, 85970440, 128955660, 257911320]

約数ペア:

[(1, 257911320), (2, 128955660), (3, 85970440), (4, 64477830), (5, 51582264), (6, 42985220), (8, 32238915), (10, 25791132), (12, 21492610), (15, 17194088), (19, 13574280), (20, 12895566), (24, 10746305), (30, 8597044), (31, 8319720), (38, 6787140), (40, 6447783), (41, 6290520), (57, 4524760), (60, 4298522), (62, 4159860), (76, 3393570), (82, 3145260), (89, 2897880), (93, 2773240), (95, 2714856), (114, 2262380), (120, 2149261), (123, 2096840), (124, 2079930), (152, 1696785), (155, 1663944), (164, 1572630), (178, 1448940), (186, 1386620), (190, 1357428), (205, 1258104), (228, 1131190), (246, 1048420), (248, 1039965), (267, 965960), (285, 904952), (310, 831972), (328, 786315), (356, 724470), (372, 693310), (380, 678714), (410, 629052), (445, 579576), (456, 565595), (465, 554648), (492, 524210), (534, 482980), (570, 452476), (589, 437880), (615, 419368), (620, 415986), (712, 362235), (744, 346655), (760, 339357), (779, 331080), (820, 314526), (890, 289788), (930, 277324), (984, 262105), (1068, 241490), (1140, 226238), (1178, 218940), (1230, 209684), (1240, 207993), (1271, 202920), (1335, 193192), (1558, 165540), (1640, 157263), (1691, 152520), (1767, 145960), (1780, 144894), (1860, 138662), (2136, 120745), (2280, 113119), (2337, 110360), (2356, 109470), (2460, 104842), (2542, 101460), (2670, 96596), (2759, 93480), (2945, 87576), (3116, 82770), (3382, 76260), (3534, 72980), (3560, 72447), (3649, 70680), (3720, 69331), (3813, 67640), (3895, 66216), (4674, 55180), (4712, 54735), (4920, 52421), (5073, 50840), (5084, 50730), (5340, 48298), (5518, 46740), (5890, 43788), (6232, 41385), (6355, 40584), (6764, 38130), (7068, 36490), (7298, 35340), (7626, 33820), (7790, 33108), (8277, 31160), (8455, 30504), (8835, 29192), (9348, 27590), (10146, 25420), (10168, 25365), (10680, 24149), (10947, 23560), (11036, 23370), (11685, 22072), (11780, 21894), (12710, 20292), (13528, 19065), (13795, 18696), (14136, 18245), (14596, 17670), (15252, 16910), (15580, 16554)]