1557646720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9397}}^1$

素因数の和:9460

約数の個数: 128

約数和(自身を含む): 4371197760

約数和(自身を除く): 2813551040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 224, 259, 280, 296, 320, 370, 448, 518, 560, 592, 640, 740, 896, 1036, 1120, 1184, 1295, 1480, 2072, 2240, 2368, 2590, 2960, 4144, 4480, 4736, 5180, 5920, 8288, 9397, 10360, 11840, 16576, 18794, 20720, 23680, 33152, 37588, 41440, 46985, 65779, 75176, 82880, 93970, 131558, 150352, 165760, 187940, 263116, 300704, 328895, 347689, 375880, 526232, 601408, 657790, 695378, 751760, 1052464, 1202816, 1315580, 1390756, 1503520, 1738445, 2104928, 2433823, 2631160, 2781512, 3007040, 3476890, 4209856, 4867646, 5262320, 5563024, 6014080, 6953780, 8419712, 9735292, 10524640, 11126048, 12169115, 13907560, 19470584, 21049280, 22252096, 24338230, 27815120, 38941168, 42098560, 44504192, 48676460, 55630240, 77882336, 97352920, 111260480, 155764672, 194705840, 222520960, 311529344, 389411680, 778823360, 1557646720]

約数ペア:

[(1, 1557646720), (2, 778823360), (4, 389411680), (5, 311529344), (7, 222520960), (8, 194705840), (10, 155764672), (14, 111260480), (16, 97352920), (20, 77882336), (28, 55630240), (32, 48676460), (35, 44504192), (37, 42098560), (40, 38941168), (56, 27815120), (64, 24338230), (70, 22252096), (74, 21049280), (80, 19470584), (112, 13907560), (128, 12169115), (140, 11126048), (148, 10524640), (160, 9735292), (185, 8419712), (224, 6953780), (259, 6014080), (280, 5563024), (296, 5262320), (320, 4867646), (370, 4209856), (448, 3476890), (518, 3007040), (560, 2781512), (592, 2631160), (640, 2433823), (740, 2104928), (896, 1738445), (1036, 1503520), (1120, 1390756), (1184, 1315580), (1295, 1202816), (1480, 1052464), (2072, 751760), (2240, 695378), (2368, 657790), (2590, 601408), (2960, 526232), (4144, 375880), (4480, 347689), (4736, 328895), (5180, 300704), (5920, 263116), (8288, 187940), (9397, 165760), (10360, 150352), (11840, 131558), (16576, 93970), (18794, 82880), (20720, 75176), (23680, 65779), (33152, 46985), (37588, 41440)]