207621760

素因数分解:

$2^7\times 5^1\times {\mathrm{401}}^1\times {\mathrm{809}}^1$

素因数の和:1229

約数の個数: 64

約数和(自身を含む): 498198600

約数和(自身を除く): 290576840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 401, 640, 802, 809, 1604, 1618, 2005, 3208, 3236, 4010, 4045, 6416, 6472, 8020, 8090, 12832, 12944, 16040, 16180, 25664, 25888, 32080, 32360, 51328, 51776, 64160, 64720, 103552, 128320, 129440, 256640, 258880, 324409, 517760, 648818, 1297636, 1622045, 2595272, 3244090, 5190544, 6488180, 10381088, 12976360, 20762176, 25952720, 41524352, 51905440, 103810880, 207621760]

約数ペア:

[(1, 207621760), (2, 103810880), (4, 51905440), (5, 41524352), (8, 25952720), (10, 20762176), (16, 12976360), (20, 10381088), (32, 6488180), (40, 5190544), (64, 3244090), (80, 2595272), (128, 1622045), (160, 1297636), (320, 648818), (401, 517760), (640, 324409), (802, 258880), (809, 256640), (1604, 129440), (1618, 128320), (2005, 103552), (3208, 64720), (3236, 64160), (4010, 51776), (4045, 51328), (6416, 32360), (6472, 32080), (8020, 25888), (8090, 25664), (12832, 16180), (12944, 16040)]