39878378

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 65499840

約数和(自身を除く): 25621462

約数列:

[1, 2, 19, 37, 38, 74, 113, 226, 251, 502, 703, 1406, 2147, 4181, 4294, 4769, 8362, 9287, 9538, 18574, 28363, 56726, 79439, 158878, 176453, 352906, 538897, 1049431, 1077794, 2098862, 19939189, 39878378]

約数ペア:

[(1, 39878378), (2, 19939189), (19, 2098862), (37, 1077794), (38, 1049431), (74, 538897), (113, 352906), (226, 176453), (251, 158878), (502, 79439), (703, 56726), (1406, 28363), (2147, 18574), (4181, 9538), (4294, 9287), (4769, 8362)]