128393944

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{120671}}^1$

素因数の和:120703

約数の個数: 32

約数和(自身を含む): 289612800

約数和(自身を除く): 161218856

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 120671, 241342, 482684, 844697, 965368, 1689394, 2292749, 3378788, 4585498, 6757576, 9170996, 16049243, 18341992, 32098486, 64196972, 128393944]

約数ペア:

[(1, 128393944), (2, 64196972), (4, 32098486), (7, 18341992), (8, 16049243), (14, 9170996), (19, 6757576), (28, 4585498), (38, 3378788), (56, 2292749), (76, 1689394), (133, 965368), (152, 844697), (266, 482684), (532, 241342), (1064, 120671)]