20164096640

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{2851}}^1$

素因数の和:3170

約数の個数: 128

約数和(自身を含む): 49535133120

約数和(自身を除く): 29371036480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 257, 320, 344, 430, 514, 640, 688, 860, 1028, 1285, 1376, 1720, 2056, 2570, 2752, 2851, 3440, 4112, 5140, 5504, 5702, 6880, 8224, 10280, 11051, 11404, 13760, 14255, 16448, 20560, 22102, 22808, 27520, 28510, 32896, 41120, 44204, 45616, 55255, 57020, 82240, 88408, 91232, 110510, 114040, 122593, 164480, 176816, 182464, 221020, 228080, 245186, 353632, 364928, 442040, 456160, 490372, 612965, 707264, 732707, 884080, 912320, 980744, 1225930, 1414528, 1465414, 1768160, 1824640, 1961488, 2451860, 2930828, 3536320, 3663535, 3922976, 4903720, 5861656, 7072640, 7327070, 7845952, 9807440, 11723312, 14654140, 15691904, 19614880, 23446624, 29308280, 31506401, 39229760, 46893248, 58616560, 63012802, 78459520, 93786496, 117233120, 126025604, 157532005, 234466240, 252051208, 315064010, 468932480, 504102416, 630128020, 1008204832, 1260256040, 2016409664, 2520512080, 4032819328, 5041024160, 10082048320, 20164096640]

約数ペア:

[(1, 20164096640), (2, 10082048320), (4, 5041024160), (5, 4032819328), (8, 2520512080), (10, 2016409664), (16, 1260256040), (20, 1008204832), (32, 630128020), (40, 504102416), (43, 468932480), (64, 315064010), (80, 252051208), (86, 234466240), (128, 157532005), (160, 126025604), (172, 117233120), (215, 93786496), (257, 78459520), (320, 63012802), (344, 58616560), (430, 46893248), (514, 39229760), (640, 31506401), (688, 29308280), (860, 23446624), (1028, 19614880), (1285, 15691904), (1376, 14654140), (1720, 11723312), (2056, 9807440), (2570, 7845952), (2752, 7327070), (2851, 7072640), (3440, 5861656), (4112, 4903720), (5140, 3922976), (5504, 3663535), (5702, 3536320), (6880, 2930828), (8224, 2451860), (10280, 1961488), (11051, 1824640), (11404, 1768160), (13760, 1465414), (14255, 1414528), (16448, 1225930), (20560, 980744), (22102, 912320), (22808, 884080), (27520, 732707), (28510, 707264), (32896, 612965), (41120, 490372), (44204, 456160), (45616, 442040), (55255, 364928), (57020, 353632), (82240, 245186), (88408, 228080), (91232, 221020), (110510, 182464), (114040, 176816), (122593, 164480)]