638963236

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1433}}^1\times {\mathrm{5867}}^1$

素因数の和:7323

約数の個数: 24

約数和(自身を含む): 1178059680

約数和(自身を除く): 539096444

約数列:

[1, 2, 4, 19, 38, 76, 1433, 2866, 5732, 5867, 11734, 23468, 27227, 54454, 108908, 111473, 222946, 445892, 8407411, 16814822, 33629644, 159740809, 319481618, 638963236]

約数ペア:

[(1, 638963236), (2, 319481618), (4, 159740809), (19, 33629644), (38, 16814822), (76, 8407411), (1433, 445892), (2866, 222946), (5732, 111473), (5867, 108908), (11734, 54454), (23468, 27227)]