19995631408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{919}}^1\times {\mathrm{43867}}^1$

素因数の和:44825

約数の個数: 40

約数和(自身を含む): 40035691520

約数和(自身を除く): 20040060112

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 919, 1838, 3676, 7352, 14704, 28489, 43867, 56978, 87734, 113956, 175468, 227912, 350936, 455824, 701872, 1359877, 2719754, 5439508, 10879016, 21758032, 40313773, 80627546, 161255092, 322510184, 645020368, 1249726963, 2499453926, 4998907852, 9997815704, 19995631408]

約数ペア:

[(1, 19995631408), (2, 9997815704), (4, 4998907852), (8, 2499453926), (16, 1249726963), (31, 645020368), (62, 322510184), (124, 161255092), (248, 80627546), (496, 40313773), (919, 21758032), (1838, 10879016), (3676, 5439508), (7352, 2719754), (14704, 1359877), (28489, 701872), (43867, 455824), (56978, 350936), (87734, 227912), (113956, 175468)]