64937744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{213611}}^1$

素因数の和:213638

約数の個数: 20

約数和(自身を含む): 132439440

約数和(自身を除く): 67501696

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 213611, 427222, 854444, 1708888, 3417776, 4058609, 8117218, 16234436, 32468872, 64937744]

約数ペア:

[(1, 64937744), (2, 32468872), (4, 16234436), (8, 8117218), (16, 4058609), (19, 3417776), (38, 1708888), (76, 854444), (152, 427222), (304, 213611)]