64143920

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5107}}^1$

素因数の和:5277

約数の個数: 40

約数和(自身を含む): 150113904

約数和(自身を除く): 85969984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 5107, 6280, 10214, 12560, 20428, 25535, 40856, 51070, 81712, 102140, 204280, 408560, 801799, 1603598, 3207196, 4008995, 6414392, 8017990, 12828784, 16035980, 32071960, 64143920]

約数ペア:

[(1, 64143920), (2, 32071960), (4, 16035980), (5, 12828784), (8, 8017990), (10, 6414392), (16, 4008995), (20, 3207196), (40, 1603598), (80, 801799), (157, 408560), (314, 204280), (628, 102140), (785, 81712), (1256, 51070), (1570, 40856), (2512, 25535), (3140, 20428), (5107, 12560), (6280, 10214)]