18534040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1789}}^1$

素因数の和:1844

約数の個数: 64

約数和(自身を含む): 48974400

約数和(自身を除く): 30440360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 1789, 2072, 2590, 3578, 5180, 7156, 8945, 10360, 12523, 14312, 17890, 25046, 35780, 50092, 62615, 66193, 71560, 100184, 125230, 132386, 250460, 264772, 330965, 463351, 500920, 529544, 661930, 926702, 1323860, 1853404, 2316755, 2647720, 3706808, 4633510, 9267020, 18534040]

約数ペア:

[(1, 18534040), (2, 9267020), (4, 4633510), (5, 3706808), (7, 2647720), (8, 2316755), (10, 1853404), (14, 1323860), (20, 926702), (28, 661930), (35, 529544), (37, 500920), (40, 463351), (56, 330965), (70, 264772), (74, 250460), (140, 132386), (148, 125230), (185, 100184), (259, 71560), (280, 66193), (296, 62615), (370, 50092), (518, 35780), (740, 25046), (1036, 17890), (1295, 14312), (1480, 12523), (1789, 10360), (2072, 8945), (2590, 7156), (3578, 5180)]