20278315712

素因数分解:

$2^6\times {\mathrm{491}}^1\times {\mathrm{645313}}^1$

素因数の和:645816

約数の個数: 28

約数和(自身を含む): 40321799976

約数和(自身を除く): 20043484264

約数列:

[1, 2, 4, 8, 16, 32, 64, 491, 982, 1964, 3928, 7856, 15712, 31424, 645313, 1290626, 2581252, 5162504, 10325008, 20650016, 41300032, 316848683, 633697366, 1267394732, 2534789464, 5069578928, 10139157856, 20278315712]

約数ペア:

[(1, 20278315712), (2, 10139157856), (4, 5069578928), (8, 2534789464), (16, 1267394732), (32, 633697366), (64, 316848683), (491, 41300032), (982, 20650016), (1964, 10325008), (3928, 5162504), (7856, 2581252), (15712, 1290626), (31424, 645313)]