320974720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:516

約数の個数: 128

約数和(自身を含む): 846028800

約数和(自身を除く): 525054080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 127, 128, 160, 176, 220, 254, 320, 352, 359, 440, 508, 635, 640, 704, 718, 880, 1016, 1270, 1397, 1408, 1436, 1760, 1795, 2032, 2540, 2794, 2872, 3520, 3590, 3949, 4064, 5080, 5588, 5744, 6985, 7040, 7180, 7898, 8128, 10160, 11176, 11488, 13970, 14360, 15796, 16256, 19745, 20320, 22352, 22976, 27940, 28720, 31592, 39490, 40640, 44704, 45593, 45952, 55880, 57440, 63184, 78980, 81280, 89408, 91186, 111760, 114880, 126368, 157960, 178816, 182372, 223520, 227965, 229760, 252736, 315920, 364744, 447040, 455930, 501523, 505472, 631840, 729488, 894080, 911860, 1003046, 1263680, 1458976, 1823720, 2006092, 2507615, 2527360, 2917952, 3647440, 4012184, 5015230, 5835904, 7294880, 8024368, 10030460, 14589760, 16048736, 20060920, 29179520, 32097472, 40121840, 64194944, 80243680, 160487360, 320974720]

約数ペア:

[(1, 320974720), (2, 160487360), (4, 80243680), (5, 64194944), (8, 40121840), (10, 32097472), (11, 29179520), (16, 20060920), (20, 16048736), (22, 14589760), (32, 10030460), (40, 8024368), (44, 7294880), (55, 5835904), (64, 5015230), (80, 4012184), (88, 3647440), (110, 2917952), (127, 2527360), (128, 2507615), (160, 2006092), (176, 1823720), (220, 1458976), (254, 1263680), (320, 1003046), (352, 911860), (359, 894080), (440, 729488), (508, 631840), (635, 505472), (640, 501523), (704, 455930), (718, 447040), (880, 364744), (1016, 315920), (1270, 252736), (1397, 229760), (1408, 227965), (1436, 223520), (1760, 182372), (1795, 178816), (2032, 157960), (2540, 126368), (2794, 114880), (2872, 111760), (3520, 91186), (3590, 89408), (3949, 81280), (4064, 78980), (5080, 63184), (5588, 57440), (5744, 55880), (6985, 45952), (7040, 45593), (7180, 44704), (7898, 40640), (8128, 39490), (10160, 31592), (11176, 28720), (11488, 27940), (13970, 22976), (14360, 22352), (15796, 20320), (16256, 19745)]