201563980

素因数分解:

$2^2\times 5^1\times {\mathrm{2399}}^1\times {\mathrm{4201}}^1$

素因数の和:6609

約数の個数: 24

約数和(自身を含む): 423561600

約数和(自身を除く): 221997620

約数列:

[1, 2, 4, 5, 10, 20, 2399, 4201, 4798, 8402, 9596, 11995, 16804, 21005, 23990, 42010, 47980, 84020, 10078199, 20156398, 40312796, 50390995, 100781990, 201563980]

約数ペア:

[(1, 201563980), (2, 100781990), (4, 50390995), (5, 40312796), (10, 20156398), (20, 10078199), (2399, 84020), (4201, 47980), (4798, 42010), (8402, 23990), (9596, 21005), (11995, 16804)]