256530240

素因数分解:

$2^6\times 3^5\times 5^1\times {\mathrm{3299}}^1$

素因数の和:3331

約数の個数: 168

約数和(自身を含む): 915314400

約数和(自身を除く): 658784160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 405, 432, 480, 486, 540, 576, 648, 720, 810, 864, 960, 972, 1080, 1215, 1296, 1440, 1620, 1728, 1944, 2160, 2430, 2592, 2880, 3240, 3299, 3888, 4320, 4860, 5184, 6480, 6598, 7776, 8640, 9720, 9897, 12960, 13196, 15552, 16495, 19440, 19794, 25920, 26392, 29691, 32990, 38880, 39588, 49485, 52784, 59382, 65980, 77760, 79176, 89073, 98970, 105568, 118764, 131960, 148455, 158352, 178146, 197940, 211136, 237528, 263920, 267219, 296910, 316704, 356292, 395880, 445365, 475056, 527840, 534438, 593820, 633408, 712584, 791760, 801657, 890730, 950112, 1055680, 1068876, 1187640, 1336095, 1425168, 1583520, 1603314, 1781460, 1900224, 2137752, 2375280, 2672190, 2850336, 3167040, 3206628, 3562920, 4008285, 4275504, 4750560, 5344380, 5700672, 6413256, 7125840, 8016570, 8551008, 9501120, 10688760, 12826512, 14251680, 16033140, 17102016, 21377520, 25653024, 28503360, 32066280, 42755040, 51306048, 64132560, 85510080, 128265120, 256530240]

約数ペア:

[(1, 256530240), (2, 128265120), (3, 85510080), (4, 64132560), (5, 51306048), (6, 42755040), (8, 32066280), (9, 28503360), (10, 25653024), (12, 21377520), (15, 17102016), (16, 16033140), (18, 14251680), (20, 12826512), (24, 10688760), (27, 9501120), (30, 8551008), (32, 8016570), (36, 7125840), (40, 6413256), (45, 5700672), (48, 5344380), (54, 4750560), (60, 4275504), (64, 4008285), (72, 3562920), (80, 3206628), (81, 3167040), (90, 2850336), (96, 2672190), (108, 2375280), (120, 2137752), (135, 1900224), (144, 1781460), (160, 1603314), (162, 1583520), (180, 1425168), (192, 1336095), (216, 1187640), (240, 1068876), (243, 1055680), (270, 950112), (288, 890730), (320, 801657), (324, 791760), (360, 712584), (405, 633408), (432, 593820), (480, 534438), (486, 527840), (540, 475056), (576, 445365), (648, 395880), (720, 356292), (810, 316704), (864, 296910), (960, 267219), (972, 263920), (1080, 237528), (1215, 211136), (1296, 197940), (1440, 178146), (1620, 158352), (1728, 148455), (1944, 131960), (2160, 118764), (2430, 105568), (2592, 98970), (2880, 89073), (3240, 79176), (3299, 77760), (3888, 65980), (4320, 59382), (4860, 52784), (5184, 49485), (6480, 39588), (6598, 38880), (7776, 32990), (8640, 29691), (9720, 26392), (9897, 25920), (12960, 19794), (13196, 19440), (15552, 16495)]