63997840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6299}}^1$

素因数の和:6439

約数の個数: 40

約数和(自身を含む): 149990400

約数和(自身を除く): 85992560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 6299, 10160, 12598, 25196, 31495, 50392, 62990, 100784, 125980, 251960, 503920, 799973, 1599946, 3199892, 3999865, 6399784, 7999730, 12799568, 15999460, 31998920, 63997840]

約数ペア:

[(1, 63997840), (2, 31998920), (4, 15999460), (5, 12799568), (8, 7999730), (10, 6399784), (16, 3999865), (20, 3199892), (40, 1599946), (80, 799973), (127, 503920), (254, 251960), (508, 125980), (635, 100784), (1016, 62990), (1270, 50392), (2032, 31495), (2540, 25196), (5080, 12598), (6299, 10160)]