21994000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{1571}}^1$

素因数の和:1601

約数の個数: 80

約数和(自身を含む): 60817536

約数和(自身を除く): 38823536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1571, 1750, 2000, 2800, 3142, 3500, 6284, 7000, 7855, 10997, 12568, 14000, 15710, 21994, 25136, 31420, 39275, 43988, 54985, 62840, 78550, 87976, 109970, 125680, 157100, 175952, 196375, 219940, 274925, 314200, 392750, 439880, 549850, 628400, 785500, 879760, 1099700, 1374625, 1571000, 2199400, 2749250, 3142000, 4398800, 5498500, 10997000, 21994000]

約数ペア:

[(1, 21994000), (2, 10997000), (4, 5498500), (5, 4398800), (7, 3142000), (8, 2749250), (10, 2199400), (14, 1571000), (16, 1374625), (20, 1099700), (25, 879760), (28, 785500), (35, 628400), (40, 549850), (50, 439880), (56, 392750), (70, 314200), (80, 274925), (100, 219940), (112, 196375), (125, 175952), (140, 157100), (175, 125680), (200, 109970), (250, 87976), (280, 78550), (350, 62840), (400, 54985), (500, 43988), (560, 39275), (700, 31420), (875, 25136), (1000, 21994), (1400, 15710), (1571, 14000), (1750, 12568), (2000, 10997), (2800, 7855), (3142, 7000), (3500, 6284)]