388206520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{57427}}^1$

素因数の和:57464

約数の個数: 48

約数和(自身を含む): 945839160

約数和(自身を除く): 557632640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 57427, 114854, 229708, 287135, 459416, 574270, 746551, 1148540, 1493102, 2297080, 2986204, 3732755, 5972408, 7465510, 9705163, 14931020, 19410326, 29862040, 38820652, 48525815, 77641304, 97051630, 194103260, 388206520]

約数ペア:

[(1, 388206520), (2, 194103260), (4, 97051630), (5, 77641304), (8, 48525815), (10, 38820652), (13, 29862040), (20, 19410326), (26, 14931020), (40, 9705163), (52, 7465510), (65, 5972408), (104, 3732755), (130, 2986204), (169, 2297080), (260, 1493102), (338, 1148540), (520, 746551), (676, 574270), (845, 459416), (1352, 287135), (1690, 229708), (3380, 114854), (6760, 57427)]