200648440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{25463}}^1$

素因数の和:25671

約数の個数: 32

約数和(自身を含む): 453768480

約数和(自身を除く): 253120040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 25463, 50926, 101852, 127315, 203704, 254630, 509260, 1018520, 5016211, 10032422, 20064844, 25081055, 40129688, 50162110, 100324220, 200648440]

約数ペア:

[(1, 200648440), (2, 100324220), (4, 50162110), (5, 40129688), (8, 25081055), (10, 20064844), (20, 10032422), (40, 5016211), (197, 1018520), (394, 509260), (788, 254630), (985, 203704), (1576, 127315), (1970, 101852), (3940, 50926), (7880, 25463)]