201557855

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 261273600

約数和(自身を除く): 59715745

約数列:

[1, 5, 23, 47, 89, 115, 235, 419, 445, 1081, 2047, 2095, 4183, 5405, 9637, 10235, 19693, 20915, 37291, 48185, 96209, 98465, 186455, 452939, 481045, 857693, 1752677, 2264695, 4288465, 8763385, 40311571, 201557855]

約数ペア:

[(1, 201557855), (5, 40311571), (23, 8763385), (47, 4288465), (89, 2264695), (115, 1752677), (235, 857693), (419, 481045), (445, 452939), (1081, 186455), (2047, 98465), (2095, 96209), (4183, 48185), (5405, 37291), (9637, 20915), (10235, 19693)]