1981569584

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{6518321}}^1$

素因数の和:6518348

約数の個数: 20

約数和(自身を含む): 4041359640

約数和(自身を除く): 2059790056

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 6518321, 13036642, 26073284, 52146568, 104293136, 123848099, 247696198, 495392396, 990784792, 1981569584]

約数ペア:

[(1, 1981569584), (2, 990784792), (4, 495392396), (8, 247696198), (16, 123848099), (19, 104293136), (38, 52146568), (76, 26073284), (152, 13036642), (304, 6518321)]