281397480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:460

約数の個数: 256

約数和(自身を含む): 1056222720

約数和(自身を除く): 774825240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 73, 78, 84, 91, 104, 105, 120, 130, 140, 146, 156, 168, 182, 195, 210, 219, 260, 273, 280, 292, 312, 353, 364, 365, 390, 420, 438, 455, 511, 520, 546, 584, 706, 728, 730, 780, 840, 876, 910, 949, 1022, 1059, 1092, 1095, 1365, 1412, 1460, 1533, 1560, 1752, 1765, 1820, 1898, 2044, 2118, 2184, 2190, 2471, 2555, 2730, 2824, 2847, 2920, 3066, 3530, 3640, 3796, 4088, 4236, 4380, 4589, 4745, 4942, 5110, 5295, 5460, 5694, 6132, 6643, 7060, 7413, 7592, 7665, 8472, 8760, 9178, 9490, 9884, 10220, 10590, 10920, 11388, 12264, 12355, 13286, 13767, 14120, 14235, 14826, 15330, 18356, 18980, 19768, 19929, 20440, 21180, 22776, 22945, 24710, 25769, 26572, 27534, 28470, 29652, 30660, 32123, 33215, 36712, 37065, 37960, 39858, 42360, 45890, 49420, 51538, 53144, 55068, 56940, 59304, 61320, 64246, 66430, 68835, 74130, 77307, 79716, 91780, 96369, 98840, 99645, 103076, 110136, 113880, 128492, 128845, 132860, 137670, 148260, 154614, 159432, 160615, 180383, 183560, 192738, 199290, 206152, 256984, 257690, 265720, 275340, 296520, 309228, 321230, 334997, 360766, 385476, 386535, 398580, 481845, 515380, 541149, 550680, 618456, 642460, 669994, 721532, 770952, 773070, 797160, 901915, 963690, 1004991, 1030760, 1082298, 1284920, 1339988, 1443064, 1546140, 1674985, 1803830, 1927380, 2009982, 2164596, 2344979, 2679976, 2705745, 3092280, 3349970, 3607660, 3854760, 4019964, 4329192, 4689958, 5024955, 5411490, 6699940, 7034937, 7215320, 8039928, 9379916, 10049910, 10822980, 11724895, 13399880, 14069874, 18759832, 20099820, 21645960, 23449790, 28139748, 35174685, 40199640, 46899580, 56279496, 70349370, 93799160, 140698740, 281397480]

約数ペア:

[(1, 281397480), (2, 140698740), (3, 93799160), (4, 70349370), (5, 56279496), (6, 46899580), (7, 40199640), (8, 35174685), (10, 28139748), (12, 23449790), (13, 21645960), (14, 20099820), (15, 18759832), (20, 14069874), (21, 13399880), (24, 11724895), (26, 10822980), (28, 10049910), (30, 9379916), (35, 8039928), (39, 7215320), (40, 7034937), (42, 6699940), (52, 5411490), (56, 5024955), (60, 4689958), (65, 4329192), (70, 4019964), (73, 3854760), (78, 3607660), (84, 3349970), (91, 3092280), (104, 2705745), (105, 2679976), (120, 2344979), (130, 2164596), (140, 2009982), (146, 1927380), (156, 1803830), (168, 1674985), (182, 1546140), (195, 1443064), (210, 1339988), (219, 1284920), (260, 1082298), (273, 1030760), (280, 1004991), (292, 963690), (312, 901915), (353, 797160), (364, 773070), (365, 770952), (390, 721532), (420, 669994), (438, 642460), (455, 618456), (511, 550680), (520, 541149), (546, 515380), (584, 481845), (706, 398580), (728, 386535), (730, 385476), (780, 360766), (840, 334997), (876, 321230), (910, 309228), (949, 296520), (1022, 275340), (1059, 265720), (1092, 257690), (1095, 256984), (1365, 206152), (1412, 199290), (1460, 192738), (1533, 183560), (1560, 180383), (1752, 160615), (1765, 159432), (1820, 154614), (1898, 148260), (2044, 137670), (2118, 132860), (2184, 128845), (2190, 128492), (2471, 113880), (2555, 110136), (2730, 103076), (2824, 99645), (2847, 98840), (2920, 96369), (3066, 91780), (3530, 79716), (3640, 77307), (3796, 74130), (4088, 68835), (4236, 66430), (4380, 64246), (4589, 61320), (4745, 59304), (4942, 56940), (5110, 55068), (5295, 53144), (5460, 51538), (5694, 49420), (6132, 45890), (6643, 42360), (7060, 39858), (7413, 37960), (7592, 37065), (7665, 36712), (8472, 33215), (8760, 32123), (9178, 30660), (9490, 29652), (9884, 28470), (10220, 27534), (10590, 26572), (10920, 25769), (11388, 24710), (12264, 22945), (12355, 22776), (13286, 21180), (13767, 20440), (14120, 19929), (14235, 19768), (14826, 18980), (15330, 18356)]