388699136

素因数分解:

$2^{10}\times 7^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:495

約数の個数: 88

約数和(自身を含む): 895701696

約数和(自身を除く): 507002560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 211, 224, 256, 257, 422, 448, 512, 514, 844, 896, 1024, 1028, 1477, 1688, 1792, 1799, 2056, 2954, 3376, 3584, 3598, 4112, 5908, 6752, 7168, 7196, 8224, 11816, 13504, 14392, 16448, 23632, 27008, 28784, 32896, 47264, 54016, 54227, 57568, 65792, 94528, 108032, 108454, 115136, 131584, 189056, 216064, 216908, 230272, 263168, 378112, 379589, 433816, 460544, 756224, 759178, 867632, 921088, 1512448, 1518356, 1735264, 1842176, 3036712, 3470528, 6073424, 6941056, 12146848, 13882112, 24293696, 27764224, 48587392, 55528448, 97174784, 194349568, 388699136]

約数ペア:

[(1, 388699136), (2, 194349568), (4, 97174784), (7, 55528448), (8, 48587392), (14, 27764224), (16, 24293696), (28, 13882112), (32, 12146848), (56, 6941056), (64, 6073424), (112, 3470528), (128, 3036712), (211, 1842176), (224, 1735264), (256, 1518356), (257, 1512448), (422, 921088), (448, 867632), (512, 759178), (514, 756224), (844, 460544), (896, 433816), (1024, 379589), (1028, 378112), (1477, 263168), (1688, 230272), (1792, 216908), (1799, 216064), (2056, 189056), (2954, 131584), (3376, 115136), (3584, 108454), (3598, 108032), (4112, 94528), (5908, 65792), (6752, 57568), (7168, 54227), (7196, 54016), (8224, 47264), (11816, 32896), (13504, 28784), (14392, 27008), (16448, 23632)]