20180177120

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{10169}}^1$

素因数の和:10420

約数の個数: 96

約数和(自身を含む): 48591446400

約数和(自身を除く): 28411269280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 157, 158, 160, 314, 316, 395, 628, 632, 785, 790, 1256, 1264, 1570, 1580, 2512, 2528, 3140, 3160, 5024, 6280, 6320, 10169, 12403, 12560, 12640, 20338, 24806, 25120, 40676, 49612, 50845, 62015, 81352, 99224, 101690, 124030, 162704, 198448, 203380, 248060, 325408, 396896, 406760, 496120, 803351, 813520, 992240, 1596533, 1606702, 1627040, 1984480, 3193066, 3213404, 4016755, 6386132, 6426808, 7982665, 8033510, 12772264, 12853616, 15965330, 16067020, 25544528, 25707232, 31930660, 32134040, 51089056, 63861320, 64268080, 126126107, 127722640, 128536160, 252252214, 255445280, 504504428, 630630535, 1009008856, 1261261070, 2018017712, 2522522140, 4036035424, 5045044280, 10090088560, 20180177120]

約数ペア:

[(1, 20180177120), (2, 10090088560), (4, 5045044280), (5, 4036035424), (8, 2522522140), (10, 2018017712), (16, 1261261070), (20, 1009008856), (32, 630630535), (40, 504504428), (79, 255445280), (80, 252252214), (157, 128536160), (158, 127722640), (160, 126126107), (314, 64268080), (316, 63861320), (395, 51089056), (628, 32134040), (632, 31930660), (785, 25707232), (790, 25544528), (1256, 16067020), (1264, 15965330), (1570, 12853616), (1580, 12772264), (2512, 8033510), (2528, 7982665), (3140, 6426808), (3160, 6386132), (5024, 4016755), (6280, 3213404), (6320, 3193066), (10169, 1984480), (12403, 1627040), (12560, 1606702), (12640, 1596533), (20338, 992240), (24806, 813520), (25120, 803351), (40676, 496120), (49612, 406760), (50845, 396896), (62015, 325408), (81352, 248060), (99224, 203380), (101690, 198448), (124030, 162704)]