201247120

素因数分解:

$2^4\times 5^1\times {\mathrm{2515589}}^1$

素因数の和:2515602

約数の個数: 20

約数和(自身を含む): 467899740

約数和(自身を除く): 266652620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515589, 5031178, 10062356, 12577945, 20124712, 25155890, 40249424, 50311780, 100623560, 201247120]

約数ペア:

[(1, 201247120), (2, 100623560), (4, 50311780), (5, 40249424), (8, 25155890), (10, 20124712), (16, 12577945), (20, 10062356), (40, 5031178), (80, 2515589)]