7878260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 18023376

約数和(自身を除く): 10145116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 193, 260, 314, 386, 628, 772, 785, 965, 1570, 1930, 2041, 2509, 3140, 3860, 4082, 5018, 8164, 10036, 10205, 12545, 20410, 25090, 30301, 40820, 50180, 60602, 121204, 151505, 303010, 393913, 606020, 787826, 1575652, 1969565, 3939130, 7878260]

約数ペア:

[(1, 7878260), (2, 3939130), (4, 1969565), (5, 1575652), (10, 787826), (13, 606020), (20, 393913), (26, 303010), (52, 151505), (65, 121204), (130, 60602), (157, 50180), (193, 40820), (260, 30301), (314, 25090), (386, 20410), (628, 12545), (772, 10205), (785, 10036), (965, 8164), (1570, 5018), (1930, 4082), (2041, 3860), (2509, 3140)]