200721820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1427}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 455097888

約数和(自身を除く): 254376068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 541, 1082, 1427, 2164, 2705, 2854, 5410, 5708, 7033, 7135, 10820, 14066, 14270, 18551, 28132, 28540, 35165, 37102, 70330, 74204, 92755, 140660, 185510, 371020, 772007, 1544014, 3088028, 3860035, 7720070, 10036091, 15440140, 20072182, 40144364, 50180455, 100360910, 200721820]

約数ペア:

[(1, 200721820), (2, 100360910), (4, 50180455), (5, 40144364), (10, 20072182), (13, 15440140), (20, 10036091), (26, 7720070), (52, 3860035), (65, 3088028), (130, 1544014), (260, 772007), (541, 371020), (1082, 185510), (1427, 140660), (2164, 92755), (2705, 74204), (2854, 70330), (5410, 37102), (5708, 35165), (7033, 28540), (7135, 28132), (10820, 18551), (14066, 14270)]