220052500

素因数分解:

$2^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 519583680

約数和(自身を除く): 299531180

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 86, 89, 92, 100, 115, 125, 172, 178, 215, 230, 250, 356, 430, 445, 460, 500, 575, 625, 860, 890, 989, 1075, 1150, 1250, 1780, 1978, 2047, 2150, 2225, 2300, 2500, 2875, 3827, 3956, 4094, 4300, 4450, 4945, 5375, 5750, 7654, 8188, 8900, 9890, 10235, 10750, 11125, 11500, 14375, 15308, 19135, 19780, 20470, 21500, 22250, 24725, 26875, 28750, 38270, 40940, 44500, 49450, 51175, 53750, 55625, 57500, 76540, 88021, 95675, 98900, 102350, 107500, 111250, 123625, 176042, 191350, 204700, 222500, 247250, 255875, 352084, 382700, 440105, 478375, 494500, 511750, 618125, 880210, 956750, 1023500, 1236250, 1279375, 1760420, 1913500, 2200525, 2391875, 2472500, 2558750, 4401050, 4783750, 5117500, 8802100, 9567500, 11002625, 22005250, 44010500, 55013125, 110026250, 220052500]

約数ペア:

[(1, 220052500), (2, 110026250), (4, 55013125), (5, 44010500), (10, 22005250), (20, 11002625), (23, 9567500), (25, 8802100), (43, 5117500), (46, 4783750), (50, 4401050), (86, 2558750), (89, 2472500), (92, 2391875), (100, 2200525), (115, 1913500), (125, 1760420), (172, 1279375), (178, 1236250), (215, 1023500), (230, 956750), (250, 880210), (356, 618125), (430, 511750), (445, 494500), (460, 478375), (500, 440105), (575, 382700), (625, 352084), (860, 255875), (890, 247250), (989, 222500), (1075, 204700), (1150, 191350), (1250, 176042), (1780, 123625), (1978, 111250), (2047, 107500), (2150, 102350), (2225, 98900), (2300, 95675), (2500, 88021), (2875, 76540), (3827, 57500), (3956, 55625), (4094, 53750), (4300, 51175), (4450, 49450), (4945, 44500), (5375, 40940), (5750, 38270), (7654, 28750), (8188, 26875), (8900, 24725), (9890, 22250), (10235, 21500), (10750, 20470), (11125, 19780), (11500, 19135), (14375, 15308)]