51841280

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 125718264

約数和(自身を除く): 73876984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 401, 404, 505, 640, 802, 808, 1010, 1280, 1604, 1616, 2005, 2020, 3208, 3232, 4010, 4040, 6416, 6464, 8020, 8080, 12832, 12928, 16040, 16160, 25664, 25856, 32080, 32320, 40501, 51328, 64160, 64640, 81002, 102656, 128320, 129280, 162004, 202505, 256640, 324008, 405010, 513280, 648016, 810020, 1296032, 1620040, 2592064, 3240080, 5184128, 6480160, 10368256, 12960320, 25920640, 51841280]

約数ペア:

[(1, 51841280), (2, 25920640), (4, 12960320), (5, 10368256), (8, 6480160), (10, 5184128), (16, 3240080), (20, 2592064), (32, 1620040), (40, 1296032), (64, 810020), (80, 648016), (101, 513280), (128, 405010), (160, 324008), (202, 256640), (256, 202505), (320, 162004), (401, 129280), (404, 128320), (505, 102656), (640, 81002), (802, 64640), (808, 64160), (1010, 51328), (1280, 40501), (1604, 32320), (1616, 32080), (2005, 25856), (2020, 25664), (3208, 16160), (3232, 16040), (4010, 12928), (4040, 12832), (6416, 8080), (6464, 8020)]