640629984

素因数分解:

$2^5\times 3^1\times {\mathrm{349}}^1\times {\mathrm{19121}}^1$

素因数の和:19483

約数の個数: 48

約数和(自身を含む): 1686560400

約数和(自身を除く): 1045930416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 349, 698, 1047, 1396, 2094, 2792, 4188, 5584, 8376, 11168, 16752, 19121, 33504, 38242, 57363, 76484, 114726, 152968, 229452, 305936, 458904, 611872, 917808, 1835616, 6673229, 13346458, 20019687, 26692916, 40039374, 53385832, 80078748, 106771664, 160157496, 213543328, 320314992, 640629984]

約数ペア:

[(1, 640629984), (2, 320314992), (3, 213543328), (4, 160157496), (6, 106771664), (8, 80078748), (12, 53385832), (16, 40039374), (24, 26692916), (32, 20019687), (48, 13346458), (96, 6673229), (349, 1835616), (698, 917808), (1047, 611872), (1396, 458904), (2094, 305936), (2792, 229452), (4188, 152968), (5584, 114726), (8376, 76484), (11168, 57363), (16752, 38242), (19121, 33504)]