20197000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1063}}^1$

素因数の和:1103

約数の個数: 64

約数和(自身を含む): 49795200

約数和(自身を除く): 29598200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1063, 1900, 2126, 2375, 3800, 4252, 4750, 5315, 8504, 9500, 10630, 19000, 20197, 21260, 26575, 40394, 42520, 53150, 80788, 100985, 106300, 132875, 161576, 201970, 212600, 265750, 403940, 504925, 531500, 807880, 1009850, 1063000, 2019700, 2524625, 4039400, 5049250, 10098500, 20197000]

約数ペア:

[(1, 20197000), (2, 10098500), (4, 5049250), (5, 4039400), (8, 2524625), (10, 2019700), (19, 1063000), (20, 1009850), (25, 807880), (38, 531500), (40, 504925), (50, 403940), (76, 265750), (95, 212600), (100, 201970), (125, 161576), (152, 132875), (190, 106300), (200, 100985), (250, 80788), (380, 53150), (475, 42520), (500, 40394), (760, 26575), (950, 21260), (1000, 20197), (1063, 19000), (1900, 10630), (2126, 9500), (2375, 8504), (3800, 5315), (4252, 4750)]