25871540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 57832320

約数和(自身を除く): 31960780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 661, 1030, 1322, 1957, 2060, 2644, 3305, 3914, 6610, 7828, 9785, 12559, 13220, 19570, 25118, 39140, 50236, 62795, 68083, 125590, 136166, 251180, 272332, 340415, 680830, 1293577, 1361660, 2587154, 5174308, 6467885, 12935770, 25871540]

約数ペア:

[(1, 25871540), (2, 12935770), (4, 6467885), (5, 5174308), (10, 2587154), (19, 1361660), (20, 1293577), (38, 680830), (76, 340415), (95, 272332), (103, 251180), (190, 136166), (206, 125590), (380, 68083), (412, 62795), (515, 50236), (661, 39140), (1030, 25118), (1322, 19570), (1957, 13220), (2060, 12559), (2644, 9785), (3305, 7828), (3914, 6610)]