1388970004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1\times {\mathrm{787}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 2578487296

約数和(自身を除く): 1189517292

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 331, 662, 787, 1324, 1333, 1574, 2666, 3148, 5332, 10261, 14233, 20522, 24397, 28466, 33841, 41044, 48794, 56932, 67682, 97588, 135364, 260497, 441223, 520994, 882446, 1041988, 1049071, 1764892, 2098142, 4196284, 8075407, 11201371, 16150814, 22402742, 32301628, 44805484, 347242501, 694485002, 1388970004]

約数ペア:

[(1, 1388970004), (2, 694485002), (4, 347242501), (31, 44805484), (43, 32301628), (62, 22402742), (86, 16150814), (124, 11201371), (172, 8075407), (331, 4196284), (662, 2098142), (787, 1764892), (1324, 1049071), (1333, 1041988), (1574, 882446), (2666, 520994), (3148, 441223), (5332, 260497), (10261, 135364), (14233, 97588), (20522, 67682), (24397, 56932), (28466, 48794), (33841, 41044)]