257775840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 288

約数和(自身を含む): 1018967040

約数和(自身を除く): 761191200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 107, 112, 120, 126, 140, 144, 160, 168, 180, 210, 214, 224, 239, 240, 252, 280, 288, 315, 321, 336, 360, 420, 428, 478, 480, 504, 535, 560, 630, 642, 672, 717, 720, 749, 840, 856, 956, 963, 1008, 1070, 1120, 1195, 1260, 1284, 1434, 1440, 1498, 1605, 1673, 1680, 1712, 1912, 1926, 2016, 2140, 2151, 2247, 2390, 2520, 2568, 2868, 2996, 3210, 3346, 3360, 3424, 3585, 3745, 3824, 3852, 4280, 4302, 4494, 4780, 4815, 5019, 5040, 5136, 5736, 5992, 6420, 6692, 6741, 7170, 7490, 7648, 7704, 8365, 8560, 8604, 8988, 9560, 9630, 10038, 10080, 10272, 10755, 11235, 11472, 11984, 12840, 13384, 13482, 14340, 14980, 15057, 15408, 16730, 17120, 17208, 17976, 19120, 19260, 20076, 21510, 22470, 22944, 23968, 25095, 25573, 25680, 26768, 26964, 28680, 29960, 30114, 30816, 33460, 33705, 34416, 35952, 38240, 38520, 40152, 43020, 44940, 50190, 51146, 51360, 53536, 53928, 57360, 59920, 60228, 66920, 67410, 68832, 71904, 75285, 76719, 77040, 80304, 86040, 89880, 100380, 102292, 107856, 114720, 119840, 120456, 127865, 133840, 134820, 150570, 153438, 154080, 160608, 172080, 179011, 179760, 200760, 204584, 215712, 230157, 240912, 255730, 267680, 269640, 301140, 306876, 344160, 358022, 359520, 383595, 401520, 409168, 460314, 481824, 511460, 537033, 539280, 602280, 613752, 716044, 767190, 803040, 818336, 895055, 920628, 1022920, 1074066, 1078560, 1150785, 1204560, 1227504, 1432088, 1534380, 1611099, 1790110, 1841256, 2045840, 2148132, 2301570, 2409120, 2455008, 2685165, 2864176, 3068760, 3222198, 3580220, 3682512, 4091680, 4296264, 4603140, 5370330, 5728352, 6137520, 6444396, 7160440, 7365024, 8055495, 8592528, 9206280, 10740660, 12275040, 12888792, 14320880, 16110990, 17185056, 18412560, 21481320, 25777584, 28641760, 32221980, 36825120, 42962640, 51555168, 64443960, 85925280, 128887920, 257775840]

約数ペア:

[(1, 257775840), (2, 128887920), (3, 85925280), (4, 64443960), (5, 51555168), (6, 42962640), (7, 36825120), (8, 32221980), (9, 28641760), (10, 25777584), (12, 21481320), (14, 18412560), (15, 17185056), (16, 16110990), (18, 14320880), (20, 12888792), (21, 12275040), (24, 10740660), (28, 9206280), (30, 8592528), (32, 8055495), (35, 7365024), (36, 7160440), (40, 6444396), (42, 6137520), (45, 5728352), (48, 5370330), (56, 4603140), (60, 4296264), (63, 4091680), (70, 3682512), (72, 3580220), (80, 3222198), (84, 3068760), (90, 2864176), (96, 2685165), (105, 2455008), (107, 2409120), (112, 2301570), (120, 2148132), (126, 2045840), (140, 1841256), (144, 1790110), (160, 1611099), (168, 1534380), (180, 1432088), (210, 1227504), (214, 1204560), (224, 1150785), (239, 1078560), (240, 1074066), (252, 1022920), (280, 920628), (288, 895055), (315, 818336), (321, 803040), (336, 767190), (360, 716044), (420, 613752), (428, 602280), (478, 539280), (480, 537033), (504, 511460), (535, 481824), (560, 460314), (630, 409168), (642, 401520), (672, 383595), (717, 359520), (720, 358022), (749, 344160), (840, 306876), (856, 301140), (956, 269640), (963, 267680), (1008, 255730), (1070, 240912), (1120, 230157), (1195, 215712), (1260, 204584), (1284, 200760), (1434, 179760), (1440, 179011), (1498, 172080), (1605, 160608), (1673, 154080), (1680, 153438), (1712, 150570), (1912, 134820), (1926, 133840), (2016, 127865), (2140, 120456), (2151, 119840), (2247, 114720), (2390, 107856), (2520, 102292), (2568, 100380), (2868, 89880), (2996, 86040), (3210, 80304), (3346, 77040), (3360, 76719), (3424, 75285), (3585, 71904), (3745, 68832), (3824, 67410), (3852, 66920), (4280, 60228), (4302, 59920), (4494, 57360), (4780, 53928), (4815, 53536), (5019, 51360), (5040, 51146), (5136, 50190), (5736, 44940), (5992, 43020), (6420, 40152), (6692, 38520), (6741, 38240), (7170, 35952), (7490, 34416), (7648, 33705), (7704, 33460), (8365, 30816), (8560, 30114), (8604, 29960), (8988, 28680), (9560, 26964), (9630, 26768), (10038, 25680), (10080, 25573), (10272, 25095), (10755, 23968), (11235, 22944), (11472, 22470), (11984, 21510), (12840, 20076), (13384, 19260), (13482, 19120), (14340, 17976), (14980, 17208), (15057, 17120), (15408, 16730)]