255660860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{140473}}^1$

素因数の和:140502

約数の個数: 48

約数和(自身を含む): 660789696

約数和(自身を除く): 405128836

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 140473, 280946, 561892, 702365, 983311, 1404730, 1826149, 1966622, 2809460, 3652298, 3933244, 4916555, 7304596, 9130745, 9833110, 12783043, 18261490, 19666220, 25566086, 36522980, 51132172, 63915215, 127830430, 255660860]

約数ペア:

[(1, 255660860), (2, 127830430), (4, 63915215), (5, 51132172), (7, 36522980), (10, 25566086), (13, 19666220), (14, 18261490), (20, 12783043), (26, 9833110), (28, 9130745), (35, 7304596), (52, 4916555), (65, 3933244), (70, 3652298), (91, 2809460), (130, 1966622), (140, 1826149), (182, 1404730), (260, 983311), (364, 702365), (455, 561892), (910, 280946), (1820, 140473)]