639611840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 224

約数和(自身を含む): 1838358528

約数和(自身を除く): 1198746688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 61, 62, 64, 70, 80, 112, 122, 124, 140, 151, 155, 160, 217, 224, 244, 248, 280, 302, 305, 310, 320, 427, 434, 448, 488, 496, 560, 604, 610, 620, 755, 854, 868, 976, 992, 1057, 1085, 1120, 1208, 1220, 1240, 1510, 1708, 1736, 1891, 1952, 1984, 2114, 2135, 2170, 2240, 2416, 2440, 2480, 3020, 3416, 3472, 3782, 3904, 4228, 4270, 4340, 4681, 4832, 4880, 4960, 5285, 6040, 6832, 6944, 7564, 8456, 8540, 8680, 9211, 9362, 9455, 9664, 9760, 9920, 10570, 12080, 13237, 13664, 13888, 15128, 16912, 17080, 17360, 18422, 18724, 18910, 19520, 21140, 23405, 24160, 26474, 27328, 30256, 32767, 33824, 34160, 34720, 36844, 37448, 37820, 42280, 46055, 46810, 48320, 52948, 60512, 64477, 65534, 66185, 67648, 68320, 69440, 73688, 74896, 75640, 84560, 92110, 93620, 105896, 121024, 128954, 131068, 132370, 136640, 147376, 149792, 151280, 163835, 169120, 184220, 187240, 211792, 257908, 262136, 264740, 285541, 294752, 299584, 302560, 322385, 327670, 338240, 368440, 374480, 423584, 515816, 524272, 529480, 571082, 589504, 605120, 644770, 655340, 736880, 748960, 847168, 1031632, 1048544, 1058960, 1142164, 1289540, 1310680, 1427705, 1473760, 1497920, 1998787, 2063264, 2097088, 2117920, 2284328, 2579080, 2621360, 2855410, 2947520, 3997574, 4126528, 4235840, 4568656, 5158160, 5242720, 5710820, 7995148, 9137312, 9993935, 10316320, 10485440, 11421640, 15990296, 18274624, 19987870, 20632640, 22843280, 31980592, 39975740, 45686560, 63961184, 79951480, 91373120, 127922368, 159902960, 319805920, 639611840]

約数ペア:

[(1, 639611840), (2, 319805920), (4, 159902960), (5, 127922368), (7, 91373120), (8, 79951480), (10, 63961184), (14, 45686560), (16, 39975740), (20, 31980592), (28, 22843280), (31, 20632640), (32, 19987870), (35, 18274624), (40, 15990296), (56, 11421640), (61, 10485440), (62, 10316320), (64, 9993935), (70, 9137312), (80, 7995148), (112, 5710820), (122, 5242720), (124, 5158160), (140, 4568656), (151, 4235840), (155, 4126528), (160, 3997574), (217, 2947520), (224, 2855410), (244, 2621360), (248, 2579080), (280, 2284328), (302, 2117920), (305, 2097088), (310, 2063264), (320, 1998787), (427, 1497920), (434, 1473760), (448, 1427705), (488, 1310680), (496, 1289540), (560, 1142164), (604, 1058960), (610, 1048544), (620, 1031632), (755, 847168), (854, 748960), (868, 736880), (976, 655340), (992, 644770), (1057, 605120), (1085, 589504), (1120, 571082), (1208, 529480), (1220, 524272), (1240, 515816), (1510, 423584), (1708, 374480), (1736, 368440), (1891, 338240), (1952, 327670), (1984, 322385), (2114, 302560), (2135, 299584), (2170, 294752), (2240, 285541), (2416, 264740), (2440, 262136), (2480, 257908), (3020, 211792), (3416, 187240), (3472, 184220), (3782, 169120), (3904, 163835), (4228, 151280), (4270, 149792), (4340, 147376), (4681, 136640), (4832, 132370), (4880, 131068), (4960, 128954), (5285, 121024), (6040, 105896), (6832, 93620), (6944, 92110), (7564, 84560), (8456, 75640), (8540, 74896), (8680, 73688), (9211, 69440), (9362, 68320), (9455, 67648), (9664, 66185), (9760, 65534), (9920, 64477), (10570, 60512), (12080, 52948), (13237, 48320), (13664, 46810), (13888, 46055), (15128, 42280), (16912, 37820), (17080, 37448), (17360, 36844), (18422, 34720), (18724, 34160), (18910, 33824), (19520, 32767), (21140, 30256), (23405, 27328), (24160, 26474)]