209929880

素因数分解:

$2^3\times 5^1\times {\mathrm{5248247}}^1$

素因数の和:5248258

約数の個数: 16

約数和(自身を含む): 472342320

約数和(自身を除く): 262412440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5248247, 10496494, 20992988, 26241235, 41985976, 52482470, 104964940, 209929880]

約数ペア:

[(1, 209929880), (2, 104964940), (4, 52482470), (5, 41985976), (8, 26241235), (10, 20992988), (20, 10496494), (40, 5248247)]