639880920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8191}}^1$

素因数の和:8246

約数の個数: 192

約数和(自身を含む): 2453667840

約数和(自身を除く): 1813786920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3720, 3906, 4340, 5208, 5580, 6510, 7812, 8191, 8680, 9765, 11160, 13020, 15624, 16382, 19530, 24573, 26040, 32764, 39060, 40955, 49146, 57337, 65528, 73719, 78120, 81910, 98292, 114674, 122865, 147438, 163820, 172011, 196584, 229348, 245730, 253921, 286685, 294876, 327640, 344022, 368595, 458696, 491460, 507842, 516033, 573370, 589752, 688044, 737190, 761763, 860055, 982920, 1015684, 1032066, 1146740, 1269605, 1376088, 1474380, 1523526, 1720110, 1777447, 2031368, 2064132, 2285289, 2293480, 2539210, 2580165, 2948760, 3047052, 3440220, 3554894, 3808815, 4128264, 4570578, 5078420, 5160330, 5332341, 6094104, 6880440, 7109788, 7617630, 8887235, 9141156, 10156840, 10320660, 10664682, 11426445, 14219576, 15235260, 15997023, 17774470, 18282312, 20641320, 21329364, 22852890, 26661705, 30470520, 31994046, 35548940, 42658728, 45705780, 53323410, 63988092, 71097880, 79985115, 91411560, 106646820, 127976184, 159970230, 213293640, 319940460, 639880920]

約数ペア:

[(1, 639880920), (2, 319940460), (3, 213293640), (4, 159970230), (5, 127976184), (6, 106646820), (7, 91411560), (8, 79985115), (9, 71097880), (10, 63988092), (12, 53323410), (14, 45705780), (15, 42658728), (18, 35548940), (20, 31994046), (21, 30470520), (24, 26661705), (28, 22852890), (30, 21329364), (31, 20641320), (35, 18282312), (36, 17774470), (40, 15997023), (42, 15235260), (45, 14219576), (56, 11426445), (60, 10664682), (62, 10320660), (63, 10156840), (70, 9141156), (72, 8887235), (84, 7617630), (90, 7109788), (93, 6880440), (105, 6094104), (120, 5332341), (124, 5160330), (126, 5078420), (140, 4570578), (155, 4128264), (168, 3808815), (180, 3554894), (186, 3440220), (210, 3047052), (217, 2948760), (248, 2580165), (252, 2539210), (279, 2293480), (280, 2285289), (310, 2064132), (315, 2031368), (360, 1777447), (372, 1720110), (420, 1523526), (434, 1474380), (465, 1376088), (504, 1269605), (558, 1146740), (620, 1032066), (630, 1015684), (651, 982920), (744, 860055), (840, 761763), (868, 737190), (930, 688044), (1085, 589752), (1116, 573370), (1240, 516033), (1260, 507842), (1302, 491460), (1395, 458696), (1736, 368595), (1860, 344022), (1953, 327640), (2170, 294876), (2232, 286685), (2520, 253921), (2604, 245730), (2790, 229348), (3255, 196584), (3720, 172011), (3906, 163820), (4340, 147438), (5208, 122865), (5580, 114674), (6510, 98292), (7812, 81910), (8191, 78120), (8680, 73719), (9765, 65528), (11160, 57337), (13020, 49146), (15624, 40955), (16382, 39060), (19530, 32764), (24573, 26040)]