64639672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1907}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 128217600

約数和(自身を除く): 63577928

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 223, 446, 892, 1784, 1907, 3814, 4237, 7628, 8474, 15256, 16948, 33896, 36233, 72466, 144932, 289864, 425261, 850522, 1701044, 3402088, 8079959, 16159918, 32319836, 64639672]

約数ペア:

[(1, 64639672), (2, 32319836), (4, 16159918), (8, 8079959), (19, 3402088), (38, 1701044), (76, 850522), (152, 425261), (223, 289864), (446, 144932), (892, 72466), (1784, 36233), (1907, 33896), (3814, 16948), (4237, 15256), (7628, 8474)]