20007328

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 23429408

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 113, 176, 226, 352, 452, 503, 904, 1006, 1243, 1808, 2012, 2486, 3616, 4024, 4972, 5533, 8048, 9944, 11066, 16096, 19888, 22132, 39776, 44264, 56839, 88528, 113678, 177056, 227356, 454712, 625229, 909424, 1250458, 1818848, 2500916, 5001832, 10003664, 20007328]

約数ペア:

[(1, 20007328), (2, 10003664), (4, 5001832), (8, 2500916), (11, 1818848), (16, 1250458), (22, 909424), (32, 625229), (44, 454712), (88, 227356), (113, 177056), (176, 113678), (226, 88528), (352, 56839), (452, 44264), (503, 39776), (904, 22132), (1006, 19888), (1243, 16096), (1808, 11066), (2012, 9944), (2486, 8048), (3616, 5533), (4024, 4972)]