208231680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:492

約数の個数: 144

約数和(自身を含む): 670791744

約数和(自身を除く): 462560064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 211, 240, 256, 257, 320, 384, 422, 480, 514, 633, 640, 768, 771, 844, 960, 1028, 1055, 1266, 1280, 1285, 1542, 1688, 1920, 2056, 2110, 2532, 2570, 3084, 3165, 3376, 3840, 3855, 4112, 4220, 5064, 5140, 6168, 6330, 6752, 7710, 8224, 8440, 10128, 10280, 12336, 12660, 13504, 15420, 16448, 16880, 20256, 20560, 24672, 25320, 27008, 30840, 32896, 33760, 40512, 41120, 49344, 50640, 54016, 54227, 61680, 65792, 67520, 81024, 82240, 98688, 101280, 108454, 123360, 135040, 162048, 162681, 164480, 197376, 202560, 216908, 246720, 270080, 271135, 325362, 328960, 405120, 433816, 493440, 542270, 650724, 810240, 813405, 867632, 986880, 1084540, 1301448, 1626810, 1735264, 2169080, 2602896, 3253620, 3470528, 4338160, 5205792, 6507240, 6941056, 8676320, 10411584, 13014480, 13882112, 17352640, 20823168, 26028960, 34705280, 41646336, 52057920, 69410560, 104115840, 208231680]

約数ペア:

[(1, 208231680), (2, 104115840), (3, 69410560), (4, 52057920), (5, 41646336), (6, 34705280), (8, 26028960), (10, 20823168), (12, 17352640), (15, 13882112), (16, 13014480), (20, 10411584), (24, 8676320), (30, 6941056), (32, 6507240), (40, 5205792), (48, 4338160), (60, 3470528), (64, 3253620), (80, 2602896), (96, 2169080), (120, 1735264), (128, 1626810), (160, 1301448), (192, 1084540), (211, 986880), (240, 867632), (256, 813405), (257, 810240), (320, 650724), (384, 542270), (422, 493440), (480, 433816), (514, 405120), (633, 328960), (640, 325362), (768, 271135), (771, 270080), (844, 246720), (960, 216908), (1028, 202560), (1055, 197376), (1266, 164480), (1280, 162681), (1285, 162048), (1542, 135040), (1688, 123360), (1920, 108454), (2056, 101280), (2110, 98688), (2532, 82240), (2570, 81024), (3084, 67520), (3165, 65792), (3376, 61680), (3840, 54227), (3855, 54016), (4112, 50640), (4220, 49344), (5064, 41120), (5140, 40512), (6168, 33760), (6330, 32896), (6752, 30840), (7710, 27008), (8224, 25320), (8440, 24672), (10128, 20560), (10280, 20256), (12336, 16880), (12660, 16448), (13504, 15420)]