71312540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1747}}^1$

素因数の和:1926

約数の個数: 48

約数和(自身を含む): 162396192

約数和(自身を除く): 91083652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 1747, 2041, 3140, 3494, 4082, 6988, 8164, 8735, 10205, 17470, 20410, 22711, 34940, 40820, 45422, 90844, 113555, 227110, 274279, 454220, 548558, 1097116, 1371395, 2742790, 3565627, 5485580, 7131254, 14262508, 17828135, 35656270, 71312540]

約数ペア:

[(1, 71312540), (2, 35656270), (4, 17828135), (5, 14262508), (10, 7131254), (13, 5485580), (20, 3565627), (26, 2742790), (52, 1371395), (65, 1097116), (130, 548558), (157, 454220), (260, 274279), (314, 227110), (628, 113555), (785, 90844), (1570, 45422), (1747, 40820), (2041, 34940), (3140, 22711), (3494, 20410), (4082, 17470), (6988, 10205), (8164, 8735)]