64636784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2389}}^1$

素因数の和:2505

約数の個数: 40

約数和(自身を含む): 133362000

約数和(自身を除く): 68725216

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 712, 1424, 1691, 2389, 3382, 4778, 6764, 9556, 13528, 19112, 27056, 38224, 45391, 90782, 181564, 212621, 363128, 425242, 726256, 850484, 1700968, 3401936, 4039799, 8079598, 16159196, 32318392, 64636784]

約数ペア:

[(1, 64636784), (2, 32318392), (4, 16159196), (8, 8079598), (16, 4039799), (19, 3401936), (38, 1700968), (76, 850484), (89, 726256), (152, 425242), (178, 363128), (304, 212621), (356, 181564), (712, 90782), (1424, 45391), (1691, 38224), (2389, 27056), (3382, 19112), (4778, 13528), (6764, 9556)]