25792520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 63065520

約数和(自身を除く): 37273000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 257, 260, 386, 514, 520, 772, 965, 1028, 1285, 1544, 1930, 2056, 2509, 2570, 3341, 3860, 5018, 5140, 6682, 7720, 10036, 10280, 12545, 13364, 16705, 20072, 25090, 26728, 33410, 49601, 50180, 66820, 99202, 100360, 133640, 198404, 248005, 396808, 496010, 644813, 992020, 1289626, 1984040, 2579252, 3224065, 5158504, 6448130, 12896260, 25792520]

約数ペア:

[(1, 25792520), (2, 12896260), (4, 6448130), (5, 5158504), (8, 3224065), (10, 2579252), (13, 1984040), (20, 1289626), (26, 992020), (40, 644813), (52, 496010), (65, 396808), (104, 248005), (130, 198404), (193, 133640), (257, 100360), (260, 99202), (386, 66820), (514, 50180), (520, 49601), (772, 33410), (965, 26728), (1028, 25090), (1285, 20072), (1544, 16705), (1930, 13364), (2056, 12545), (2509, 10280), (2570, 10036), (3341, 7720), (3860, 6682), (5018, 5140)]