640426800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:768

約数の個数: 240

約数和(自身を含む): 2248863008

約数和(自身を除く): 1608436208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 61, 65, 75, 78, 80, 100, 104, 120, 122, 130, 150, 156, 183, 195, 200, 208, 240, 244, 260, 300, 305, 312, 325, 366, 390, 400, 488, 520, 600, 610, 624, 650, 673, 732, 780, 793, 915, 975, 976, 1040, 1200, 1220, 1300, 1346, 1464, 1525, 1560, 1586, 1830, 1950, 2019, 2379, 2440, 2600, 2692, 2928, 3050, 3120, 3172, 3365, 3660, 3900, 3965, 4038, 4575, 4758, 4880, 5200, 5384, 6100, 6344, 6730, 7320, 7800, 7930, 8076, 8749, 9150, 9516, 10095, 10768, 11895, 12200, 12688, 13460, 14640, 15600, 15860, 16152, 16825, 17498, 18300, 19032, 19825, 20190, 23790, 24400, 26247, 26920, 31720, 32304, 33650, 34996, 36600, 38064, 39650, 40380, 41053, 43745, 47580, 50475, 52494, 53840, 59475, 63440, 67300, 69992, 73200, 79300, 80760, 82106, 87490, 95160, 100950, 104988, 118950, 123159, 131235, 134600, 139984, 158600, 161520, 164212, 174980, 190320, 201900, 205265, 209976, 218725, 237900, 246318, 262470, 269200, 317200, 328424, 349960, 403800, 410530, 419952, 437450, 475800, 492636, 524940, 533689, 615795, 656175, 656848, 699920, 807600, 821060, 874900, 951600, 985272, 1026325, 1049880, 1067378, 1231590, 1312350, 1601067, 1642120, 1749800, 1970544, 2052650, 2099760, 2134756, 2463180, 2624700, 2668445, 3078975, 3202134, 3284240, 3499600, 4105300, 4269512, 4926360, 5249400, 5336890, 6157950, 6404268, 8005335, 8210600, 8539024, 9852720, 10498800, 10673780, 12315900, 12808536, 13342225, 16010670, 16421200, 21347560, 24631800, 25617072, 26684450, 32021340, 40026675, 42695120, 49263600, 53368900, 64042680, 80053350, 106737800, 128085360, 160106700, 213475600, 320213400, 640426800]

約数ペア:

[(1, 640426800), (2, 320213400), (3, 213475600), (4, 160106700), (5, 128085360), (6, 106737800), (8, 80053350), (10, 64042680), (12, 53368900), (13, 49263600), (15, 42695120), (16, 40026675), (20, 32021340), (24, 26684450), (25, 25617072), (26, 24631800), (30, 21347560), (39, 16421200), (40, 16010670), (48, 13342225), (50, 12808536), (52, 12315900), (60, 10673780), (61, 10498800), (65, 9852720), (75, 8539024), (78, 8210600), (80, 8005335), (100, 6404268), (104, 6157950), (120, 5336890), (122, 5249400), (130, 4926360), (150, 4269512), (156, 4105300), (183, 3499600), (195, 3284240), (200, 3202134), (208, 3078975), (240, 2668445), (244, 2624700), (260, 2463180), (300, 2134756), (305, 2099760), (312, 2052650), (325, 1970544), (366, 1749800), (390, 1642120), (400, 1601067), (488, 1312350), (520, 1231590), (600, 1067378), (610, 1049880), (624, 1026325), (650, 985272), (673, 951600), (732, 874900), (780, 821060), (793, 807600), (915, 699920), (975, 656848), (976, 656175), (1040, 615795), (1200, 533689), (1220, 524940), (1300, 492636), (1346, 475800), (1464, 437450), (1525, 419952), (1560, 410530), (1586, 403800), (1830, 349960), (1950, 328424), (2019, 317200), (2379, 269200), (2440, 262470), (2600, 246318), (2692, 237900), (2928, 218725), (3050, 209976), (3120, 205265), (3172, 201900), (3365, 190320), (3660, 174980), (3900, 164212), (3965, 161520), (4038, 158600), (4575, 139984), (4758, 134600), (4880, 131235), (5200, 123159), (5384, 118950), (6100, 104988), (6344, 100950), (6730, 95160), (7320, 87490), (7800, 82106), (7930, 80760), (8076, 79300), (8749, 73200), (9150, 69992), (9516, 67300), (10095, 63440), (10768, 59475), (11895, 53840), (12200, 52494), (12688, 50475), (13460, 47580), (14640, 43745), (15600, 41053), (15860, 40380), (16152, 39650), (16825, 38064), (17498, 36600), (18300, 34996), (19032, 33650), (19825, 32304), (20190, 31720), (23790, 26920), (24400, 26247)]